From 6e45c61638b97e3030ff83f8058589f46f2419ea Mon Sep 17 00:00:00 2001
From: LeoBorcherding <borchborchmail@gmail.com>
Date: Thu, 10 Sep 2026 10:26:39 -0500
Subject: [PATCH 1/6] fix(AMD): recognise the RX 6950 XT, 6850M XT and 6550M
 instead of leaving them on CPU torch

The seven copies of the AMD marketing-name to gfx table cover the launch RDNA 2
parts and not the refresh ones, which carry their own model number: RX 6950 XT
(Navi 21), RX 6850M XT (Navi 22) and RX 6550M (Navi 24) matched no arm. On a host
where the name is the only arch source -- Windows with the Adrenalin driver and no
HIP SDK -- that means no arch, so CPU-only torch on a card the gfx103X-all index
does cover.

The same table decides whether Settings > System can report a card PyTorch cannot
use, so the gap also cost the message: an unmatched adapter reads as one the stack
declines on purpose, and the panel falls through to a bare "No visible GPU" beside
a card the OS is listing.

Adds the three names to all seven copies, a parity case for each so a future copy
that misses one fails naming the file, and a backend test pinning that a Windows
adapter named only by its marketing string establishes a mismatch.
---
 install.ps1                                   |  4 +--
 install.sh                                    |  8 +++---
 .../test_torch_cpu_build_on_nvidia_host.py    | 27 +++++++++++++++++++
 studio/backend/utils/hardware/hardware.py     |  4 +--
 studio/install_python_stack.py                |  8 ++++--
 studio/setup.ps1                              |  4 +--
 studio/setup.sh                               |  4 +--
 .../install/test_rocm_arch_table_parity.py    |  5 ++++
 tests/studio/test_amd_name_arch_r9700.ps1     |  4 +++
 9 files changed, 54 insertions(+), 14 deletions(-)

diff --git a/install.ps1 b/install.ps1
index e65a6a03b5b..d2f154bee01 100644
--- a/install.ps1
+++ b/install.ps1
@@ -5374,9 +5374,9 @@ exit 0
                     @{ P = "RX 7800|RX 7700(?!S)|PRO W7700|PRO V710";             A = "gfx1101" }  # RDNA 3 (Navi 32)
                     @{ P = "RX 7600|RX 7700S|RX 7650|PRO W7600|PRO W7500";        A = "gfx1102" }  # RDNA 3 (Navi 33)
                     @{ P = "780M|760M|740M|Phoenix|Hawk Point|Z1 Extreme|Z2 Extreme"; A = "gfx1103" }  # RDNA 3 iGPU (Phoenix / Hawk Point)
-                    @{ P = "RX 6900|RX 6800|RX 6750|RX 6700|PRO W6800|PRO W6900";  A = "gfx1030" }  # RDNA 2 (Navi 21) -- gfx103X family
+                    @{ P = "RX 6950|RX 6900|RX 6850|RX 6800|RX 6750|RX 6700|PRO W6800|PRO W6900"; A = "gfx1030" }  # RDNA 2 (Navi 21) -- gfx103X family
                     @{ P = "RX 6650|RX 6600|PRO W6600|PRO W6650";                  A = "gfx1032" }  # RDNA 2 (Navi 23) -- gfx103X family
-                    @{ P = "RX 6500|RX 6400|RX 6300|PRO W6400|PRO W6500";          A = "gfx1034" }  # RDNA 2 (Navi 24) -- gfx103X family
+                    @{ P = "RX 6550|RX 6500|RX 6400|RX 6300|PRO W6400|PRO W6500";  A = "gfx1034" }  # RDNA 2 (Navi 24) -- gfx103X family
                 )
                 foreach ($row in $nameArchTable) {
                     if ($ROCmGpuLabel -match $row.P) {
diff --git a/install.sh b/install.sh
index 120a3cd9434..07bd5f8f543 100755
--- a/install.sh
+++ b/install.sh
@@ -3132,9 +3132,9 @@ _infer_amd_gfx_arch_from_gpu_name() {
         *"RX 7800"*|*"RX 7700"*|*"PRO W7700"*|*"PRO V710"*) echo gfx1101 ;;
         *"RX 7900"*|*"PRO W7900"*|*"PRO W7800"*) echo gfx1100 ;;
         *"780M"*|*"760M"*|*"740M"*|*"Phoenix"*|*"Hawk Point"*|*"Z1 Extreme"*|*"Z2 Extreme"*) echo gfx1103 ;;
-        *"RX 6900"*|*"RX 6800"*|*"RX 6750"*|*"RX 6700"*|*"PRO W6800"*|*"PRO W6900"*) echo gfx1030 ;;
+        *"RX 6950"*|*"RX 6900"*|*"RX 6850"*|*"RX 6800"*|*"RX 6750"*|*"RX 6700"*|*"PRO W6800"*|*"PRO W6900"*) echo gfx1030 ;;
         *"RX 6650"*|*"RX 6600"*|*"PRO W6600"*|*"PRO W6650"*) echo gfx1032 ;;
-        *"RX 6500"*|*"RX 6400"*|*"RX 6300"*|*"PRO W6400"*|*"PRO W6500"*) echo gfx1034 ;;
+        *"RX 6550"*|*"RX 6500"*|*"RX 6400"*|*"RX 6300"*|*"PRO W6400"*|*"PRO W6500"*) echo gfx1034 ;;
         *) return 1 ;;
     esac
 }
@@ -4652,9 +4652,9 @@ elif case "$TORCH_INDEX_URL" in */rocm*|*/gfx*) true ;; *) false ;; esac; then
             *"RX 7800"*|*"RX 7700"*|*"PRO W7700"*|*"PRO V710"*)                                            _gpu_disp_gfx="gfx1101" ;;  # RDNA 3 (Navi 32)
             *"RX 7900"*|*"PRO W7900"*|*"PRO W7800"*)                                                       _gpu_disp_gfx="gfx1100" ;;  # RDNA 3 desktop / workstation (Navi 31)
             *"780M"*|*"760M"*|*"740M"*|*"Phoenix"*|*"Hawk Point"*|*"Z1 Extreme"*|*"Z2 Extreme"*)            _gpu_disp_gfx="gfx1103" ;;  # RDNA 3 iGPU (Phoenix / Hawk Point)
-            *"RX 6900"*|*"RX 6800"*|*"RX 6750"*|*"RX 6700"*|*"PRO W6800"*|*"PRO W6900"*)                    _gpu_disp_gfx="gfx1030" ;;  # RDNA 2 (Navi 21)
+            *"RX 6950"*|*"RX 6900"*|*"RX 6850"*|*"RX 6800"*|*"RX 6750"*|*"RX 6700"*|*"PRO W6800"*|*"PRO W6900"*) _gpu_disp_gfx="gfx1030" ;;  # RDNA 2 (Navi 21)
             *"RX 6650"*|*"RX 6600"*|*"PRO W6600"*|*"PRO W6650"*)                                            _gpu_disp_gfx="gfx1032" ;;  # RDNA 2 (Navi 23)
-            *"RX 6500"*|*"RX 6400"*|*"RX 6300"*|*"PRO W6400"*|*"PRO W6500"*)                                _gpu_disp_gfx="gfx1034" ;;  # RDNA 2 (Navi 24)
+            *"RX 6550"*|*"RX 6500"*|*"RX 6400"*|*"RX 6300"*|*"PRO W6400"*|*"PRO W6500"*)                    _gpu_disp_gfx="gfx1034" ;;  # RDNA 2 (Navi 24)
         esac
         if [ -n "$_gpu_disp_gfx" ]; then
             substep "gfx arch inferred from GPU name: $_gpu_disp_gfx"
diff --git a/studio/backend/tests/test_torch_cpu_build_on_nvidia_host.py b/studio/backend/tests/test_torch_cpu_build_on_nvidia_host.py
index b3b68853239..1a180315281 100644
--- a/studio/backend/tests/test_torch_cpu_build_on_nvidia_host.py
+++ b/studio/backend/tests/test_torch_cpu_build_on_nvidia_host.py
@@ -1179,6 +1179,33 @@ def test_an_ordinary_intel_igpu_does_not_establish_a_mismatch(monkeypatch, tmp_p
     assert hw._devices_that_can_establish_a_mismatch(others) == others
 
 
+def test_an_amd_card_named_only_by_its_marketing_string_establishes_a_mismatch(
+    monkeypatch, tmp_path
+):
+    """A Windows driver that wrote no AdapterFamily leaves the name as the only arch source.
+
+    Silence here is the worst of both: the card is one the installers do ship a wheel for,
+    so leaving it out of the mismatch drops it from Settings > System entirely and the panel
+    says "No visible GPU" beside a card the OS is listing (#10468). The name table decides,
+    which is why a gap in it costs the message as well as the wheel.
+    """
+    _shared_setup_1(monkeypatch, tmp_path)
+    monkeypatch.setattr(hw, "_linux_kfd_reports_an_amd_gpu", lambda: False)
+
+    covered = [
+        {"vendor": "amd", "name": "AMD Radeon RX 6950 XT", "index": 0, "gfx_candidates": []},
+        {"vendor": "amd", "name": "AMD Radeon RX 6850M XT", "index": 0, "gfx_candidates": []},
+        {"vendor": "amd", "name": "AMD Radeon RX 6550M", "index": 0, "gfx_candidates": []},
+    ]
+    for device in covered:
+        assert hw._devices_that_can_establish_a_mismatch([device]) == [device], device["name"]
+
+    # The other direction still holds: RDNA 1 is declined on purpose, so it must stay quiet
+    # rather than offer a repair that reinstalls the same CPU wheel.
+    declined = [{"vendor": "amd", "name": "AMD Radeon RX 5700 XT", "index": 0, "gfx_candidates": []}]
+    assert hw._devices_that_can_establish_a_mismatch(declined) == []
+
+
 def test_a_nameless_intel_card_counts_once_xpu_was_actually_chosen(monkeypatch, tmp_path):
     sys = _shared_setup_1(monkeypatch, tmp_path)
     monkeypatch.delenv("UNSLOTH_TORCH_INDEX_URL", raising = False)
diff --git a/studio/backend/utils/hardware/hardware.py b/studio/backend/utils/hardware/hardware.py
index fb4a91241f5..8b89b0e4651 100644
--- a/studio/backend/utils/hardware/hardware.py
+++ b/studio/backend/utils/hardware/hardware.py
@@ -942,9 +942,9 @@ def _torch_reports_a_hip_runtime() -> bool:
     (r"RX 7800|RX 7700(?!S)|PRO W7700|PRO V710", "gfx1101"),
     (r"RX 7600|RX 7700S|RX 7650|PRO W7600|PRO W7500", "gfx1102"),
     (r"780M|760M|740M|Phoenix|Hawk Point|Z1 Extreme|Z2 Extreme", "gfx1103"),
-    (r"RX 6900|RX 6800|RX 6750|RX 6700|PRO W6800|PRO W6900", "gfx1030"),
+    (r"RX 6950|RX 6900|RX 6850|RX 6800|RX 6750|RX 6700|PRO W6800|PRO W6900", "gfx1030"),
     (r"RX 6650|RX 6600|PRO W6600|PRO W6650", "gfx1032"),
-    (r"RX 6500|RX 6400|RX 6300|PRO W6400|PRO W6500", "gfx1034"),
+    (r"RX 6550|RX 6500|RX 6400|RX 6300|PRO W6400|PRO W6500", "gfx1034"),
 ]
 
 
diff --git a/studio/install_python_stack.py b/studio/install_python_stack.py
index 147bd8641d9..e96a55734d6 100644
--- a/studio/install_python_stack.py
+++ b/studio/install_python_stack.py
@@ -1674,9 +1674,13 @@ def _dedup_pick(
     (r"RX 7600|RX 7700S|RX 7650|PRO W7600|PRO W7500", "gfx1102"),  # Navi 33
     # RDNA 3 iGPU (Phoenix / Hawk Point)
     (r"780M|760M|740M|Phoenix|Hawk Point|Z1 Extreme|Z2 Extreme", "gfx1103"),
-    (r"RX 6900|RX 6800|RX 6750|RX 6700|PRO W6800|PRO W6900", "gfx1030"),  # Navi 21
+    # RDNA 2. The refresh parts carry their own number, matched nothing, and took CPU torch on
+    # hosts where the name is the only arch source (#10468): 6950 XT, 6850M XT, 6550M. 6850M XT
+    # is Navi 22 and joins the 6750 / 6700 arm as those already do -- every RDNA 2 row resolves
+    # to gfx103X-all, so the exact id picks no different wheel.
+    (r"RX 6950|RX 6900|RX 6850|RX 6800|RX 6750|RX 6700|PRO W6800|PRO W6900", "gfx1030"),  # Navi 21
     (r"RX 6650|RX 6600|PRO W6600|PRO W6650", "gfx1032"),  # Navi 23
-    (r"RX 6500|RX 6400|RX 6300|PRO W6400|PRO W6500", "gfx1034"),  # Navi 24
+    (r"RX 6550|RX 6500|RX 6400|RX 6300|PRO W6400|PRO W6500", "gfx1034"),  # Navi 24
 ]
 
 
diff --git a/studio/setup.ps1 b/studio/setup.ps1
index f439fab17ef..368f36d8760 100644
--- a/studio/setup.ps1
+++ b/studio/setup.ps1
@@ -2736,9 +2736,9 @@ if (-not $HasNvidiaSmi) {
                 @{ P = "RX 7800|RX 7700(?!S)|PRO W7700|PRO V710";             A = "gfx1101" }  # RDNA 3 (Navi 32)
                 @{ P = "RX 7600|RX 7700S|RX 7650|PRO W7600|PRO W7500";        A = "gfx1102" }  # RDNA 3 (Navi 33)
                 @{ P = "780M|760M|740M|Phoenix|Hawk Point|Z1 Extreme|Z2 Extreme"; A = "gfx1103" }  # RDNA 3 iGPU (Phoenix / Hawk Point)
-                @{ P = "RX 6900|RX 6800|RX 6750|RX 6700|PRO W6800|PRO W6900";  A = "gfx1030" }  # RDNA 2 (Navi 21) -- gfx103X family
+                @{ P = "RX 6950|RX 6900|RX 6850|RX 6800|RX 6750|RX 6700|PRO W6800|PRO W6900"; A = "gfx1030" }  # RDNA 2 (Navi 21) -- gfx103X family
                 @{ P = "RX 6650|RX 6600|PRO W6600|PRO W6650";                  A = "gfx1032" }  # RDNA 2 (Navi 23) -- gfx103X family
-                @{ P = "RX 6500|RX 6400|RX 6300|PRO W6400|PRO W6500";          A = "gfx1034" }  # RDNA 2 (Navi 24) -- gfx103X family
+                @{ P = "RX 6550|RX 6500|RX 6400|RX 6300|PRO W6400|PRO W6500";  A = "gfx1034" }  # RDNA 2 (Navi 24) -- gfx103X family
             )
             function Get-GfxArchFromGpuName {
                 param([AllowNull()][string]$Name, [object[]]$Table)
diff --git a/studio/setup.sh b/studio/setup.sh
index a196dc2ce6a..028e43032f3 100755
--- a/studio/setup.sh
+++ b/studio/setup.sh
@@ -2323,9 +2323,9 @@ _setup_supported_gfx_from_name() {
         *"RX 7800"*|*"RX 7700"*|*"PRO W7700"*|*"PRO V710"*)                                            _sup_gfx_out="gfx1101" ;;  # RDNA 3 (Navi 32)
         *"RX 7900"*|*"PRO W7900"*|*"PRO W7800"*)                                                       _sup_gfx_out="gfx1100" ;;  # RDNA 3 desktop / workstation (Navi 31)
         *"780M"*|*"760M"*|*"740M"*|*"Phoenix"*|*"Hawk Point"*|*"Z1 Extreme"*|*"Z2 Extreme"*)            _sup_gfx_out="gfx1103" ;;  # RDNA 3 iGPU (Phoenix / Hawk Point)
-        *"RX 6900"*|*"RX 6800"*|*"RX 6750"*|*"RX 6700"*|*"PRO W6800"*|*"PRO W6900"*)                    _sup_gfx_out="gfx1030" ;;  # RDNA 2 (Navi 21)
+        *"RX 6950"*|*"RX 6900"*|*"RX 6850"*|*"RX 6800"*|*"RX 6750"*|*"RX 6700"*|*"PRO W6800"*|*"PRO W6900"*) _sup_gfx_out="gfx1030" ;;  # RDNA 2 (Navi 21)
         *"RX 6650"*|*"RX 6600"*|*"PRO W6600"*|*"PRO W6650"*)                                            _sup_gfx_out="gfx1032" ;;  # RDNA 2 (Navi 23)
-        *"RX 6500"*|*"RX 6400"*|*"RX 6300"*|*"PRO W6400"*|*"PRO W6500"*)                                _sup_gfx_out="gfx1034" ;;  # RDNA 2 (Navi 24)
+        *"RX 6550"*|*"RX 6500"*|*"RX 6400"*|*"RX 6300"*|*"PRO W6400"*|*"PRO W6500"*)                    _sup_gfx_out="gfx1034" ;;  # RDNA 2 (Navi 24)
     esac
     [ -n "$_sup_gfx_out" ] || return 1
     printf '%s\n' "$_sup_gfx_out"
diff --git a/tests/studio/install/test_rocm_arch_table_parity.py b/tests/studio/install/test_rocm_arch_table_parity.py
index f1313276fbd..463fe7e7534 100644
--- a/tests/studio/install/test_rocm_arch_table_parity.py
+++ b/tests/studio/install/test_rocm_arch_table_parity.py
@@ -306,6 +306,11 @@ def _match_ps(rows: list[tuple[str, str]], gpu_name: str) -> str | None:
     ("AMD Radeon RX 6700 XT", "gfx103X-all"),
     ("AMD Radeon RX 6600 XT", "gfx103X-all"),
     ("AMD Radeon RX 6500 XT", "gfx103X-all"),
+    # The RDNA 2 refresh parts, which hold their own number rather than the one already listed.
+    # All three matched nothing in all seven copies and took CPU torch (#10468).
+    ("AMD Radeon RX 6950 XT", "gfx103X-all"),
+    ("AMD Radeon RX 6850M XT", "gfx103X-all"),
+    ("AMD Radeon RX 6550M", "gfx103X-all"),
 ]
 
 # Exact gfx ids, transcribed from AMD's ROCm compatibility matrix (the "Radeon GPU" list at
diff --git a/tests/studio/test_amd_name_arch_r9700.ps1 b/tests/studio/test_amd_name_arch_r9700.ps1
index 57899b86c0e..303d217f1e7 100644
--- a/tests/studio/test_amd_name_arch_r9700.ps1
+++ b/tests/studio/test_amd_name_arch_r9700.ps1
@@ -71,6 +71,10 @@ $otherNames = @(
     @{ N = "AMD Radeon RX 6900 XT";        A = "gfx1030" },
     @{ N = "AMD Radeon RX 6600 XT";        A = "gfx1032" },
     @{ N = "AMD Radeon RX 6500 XT";        A = "gfx1034" },
+    # RDNA 2 refresh parts: their own number, so the arms above never covered them (#10468).
+    @{ N = "AMD Radeon RX 6950 XT";        A = "gfx1030" },
+    @{ N = "AMD Radeon RX 6850M XT";       A = "gfx1030" },
+    @{ N = "AMD Radeon RX 6550M";          A = "gfx1034" },
     @{ N = "ATI Radeon 9700 PRO";          A = $null },
     @{ N = "ATI Radeon 9800 PRO";          A = $null },
     @{ N = "AMD Radeon R9 Fury X";         A = $null },

From 3eea75e008df4cb1342700ec7826b16174a3c275 Mon Sep 17 00:00:00 2001
From: "pre-commit-ci[bot]"
 <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Date: Thu, 10 Sep 2026 20:41:06 +0000
Subject: [PATCH 2/6] [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci
---
 studio/backend/tests/test_torch_cpu_build_on_nvidia_host.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/studio/backend/tests/test_torch_cpu_build_on_nvidia_host.py b/studio/backend/tests/test_torch_cpu_build_on_nvidia_host.py
index 1a180315281..01f7eb67cfa 100644
--- a/studio/backend/tests/test_torch_cpu_build_on_nvidia_host.py
+++ b/studio/backend/tests/test_torch_cpu_build_on_nvidia_host.py
@@ -1202,7 +1202,9 @@ def test_an_amd_card_named_only_by_its_marketing_string_establishes_a_mismatch(
 
     # The other direction still holds: RDNA 1 is declined on purpose, so it must stay quiet
     # rather than offer a repair that reinstalls the same CPU wheel.
-    declined = [{"vendor": "amd", "name": "AMD Radeon RX 5700 XT", "index": 0, "gfx_candidates": []}]
+    declined = [
+        {"vendor": "amd", "name": "AMD Radeon RX 5700 XT", "index": 0, "gfx_candidates": []}
+    ]
     assert hw._devices_that_can_establish_a_mismatch(declined) == []
 
 

From cb1af47bc853ee81585fe3d7a3077ecb4ee3e2bb Mon Sep 17 00:00:00 2001
From: danielhanchen <danielhanchen@gmail.com>
Date: Mon, 14 Sep 2026 06:54:52 +0000
Subject: [PATCH 3/6] Recognise the RX 6450M and PRO W6300 as well

---
 install.ps1                                         | 2 +-
 install.sh                                          | 4 ++--
 studio/backend/utils/hardware/hardware.py           | 2 +-
 studio/install_python_stack.py                      | 2 +-
 studio/setup.ps1                                    | 2 +-
 studio/setup.sh                                     | 2 +-
 tests/studio/install/test_rocm_arch_table_parity.py | 4 ++++
 tests/studio/test_amd_name_arch_r9700.ps1           | 2 ++
 8 files changed, 13 insertions(+), 7 deletions(-)

diff --git a/install.ps1 b/install.ps1
index bb275d13600..43e4020bb73 100644
--- a/install.ps1
+++ b/install.ps1
@@ -5625,7 +5625,7 @@ exit 0
                     @{ P = "780M|760M|740M|Phoenix|Hawk Point|Z1 Extreme|Z2 Extreme"; A = "gfx1103" }  # RDNA 3 iGPU (Phoenix / Hawk Point)
                     @{ P = "RX 6950|RX 6900|RX 6850|RX 6800|RX 6750|RX 6700|PRO W6800|PRO W6900"; A = "gfx1030" }  # RDNA 2 (Navi 21) -- gfx103X family
                     @{ P = "RX 6650|RX 6600|PRO W6600|PRO W6650";                  A = "gfx1032" }  # RDNA 2 (Navi 23) -- gfx103X family
-                    @{ P = "RX 6550|RX 6500|RX 6400|RX 6300|PRO W6400|PRO W6500";  A = "gfx1034" }  # RDNA 2 (Navi 24) -- gfx103X family
+                    @{ P = "RX 6550|RX 6500|RX 6450|RX 6400|RX 6300|PRO W6400|PRO W6500|PRO W6300";  A = "gfx1034" }  # RDNA 2 (Navi 24) -- gfx103X family
                 )
                 foreach ($row in $nameArchTable) {
                     if ($ROCmGpuLabel -match $row.P) {
diff --git a/install.sh b/install.sh
index 9bffa907508..5d6249086de 100755
--- a/install.sh
+++ b/install.sh
@@ -3412,7 +3412,7 @@ _infer_amd_gfx_arch_from_gpu_name() {
         *"780M"*|*"760M"*|*"740M"*|*"Phoenix"*|*"Hawk Point"*|*"Z1 Extreme"*|*"Z2 Extreme"*) echo gfx1103 ;;
         *"RX 6950"*|*"RX 6900"*|*"RX 6850"*|*"RX 6800"*|*"RX 6750"*|*"RX 6700"*|*"PRO W6800"*|*"PRO W6900"*) echo gfx1030 ;;
         *"RX 6650"*|*"RX 6600"*|*"PRO W6600"*|*"PRO W6650"*) echo gfx1032 ;;
-        *"RX 6550"*|*"RX 6500"*|*"RX 6400"*|*"RX 6300"*|*"PRO W6400"*|*"PRO W6500"*) echo gfx1034 ;;
+        *"RX 6550"*|*"RX 6500"*|*"RX 6450"*|*"RX 6400"*|*"RX 6300"*|*"PRO W6400"*|*"PRO W6500"*|*"PRO W6300"*) echo gfx1034 ;;
         *) return 1 ;;
     esac
 }
@@ -4932,7 +4932,7 @@ elif case "$TORCH_INDEX_URL" in */rocm*|*/gfx*) true ;; *) false ;; esac; then
             *"780M"*|*"760M"*|*"740M"*|*"Phoenix"*|*"Hawk Point"*|*"Z1 Extreme"*|*"Z2 Extreme"*)            _gpu_disp_gfx="gfx1103" ;;  # RDNA 3 iGPU (Phoenix / Hawk Point)
             *"RX 6950"*|*"RX 6900"*|*"RX 6850"*|*"RX 6800"*|*"RX 6750"*|*"RX 6700"*|*"PRO W6800"*|*"PRO W6900"*) _gpu_disp_gfx="gfx1030" ;;  # RDNA 2 (Navi 21)
             *"RX 6650"*|*"RX 6600"*|*"PRO W6600"*|*"PRO W6650"*)                                            _gpu_disp_gfx="gfx1032" ;;  # RDNA 2 (Navi 23)
-            *"RX 6550"*|*"RX 6500"*|*"RX 6400"*|*"RX 6300"*|*"PRO W6400"*|*"PRO W6500"*)                    _gpu_disp_gfx="gfx1034" ;;  # RDNA 2 (Navi 24)
+            *"RX 6550"*|*"RX 6500"*|*"RX 6450"*|*"RX 6400"*|*"RX 6300"*|*"PRO W6400"*|*"PRO W6500"*|*"PRO W6300"*)                    _gpu_disp_gfx="gfx1034" ;;  # RDNA 2 (Navi 24)
         esac
         if [ -n "$_gpu_disp_gfx" ]; then
             substep "gfx arch inferred from GPU name: $_gpu_disp_gfx"
diff --git a/studio/backend/utils/hardware/hardware.py b/studio/backend/utils/hardware/hardware.py
index 8e58845d689..9ccfc82d56e 100644
--- a/studio/backend/utils/hardware/hardware.py
+++ b/studio/backend/utils/hardware/hardware.py
@@ -944,7 +944,7 @@ def _torch_reports_a_hip_runtime() -> bool:
     (r"780M|760M|740M|Phoenix|Hawk Point|Z1 Extreme|Z2 Extreme", "gfx1103"),
     (r"RX 6950|RX 6900|RX 6850|RX 6800|RX 6750|RX 6700|PRO W6800|PRO W6900", "gfx1030"),
     (r"RX 6650|RX 6600|PRO W6600|PRO W6650", "gfx1032"),
-    (r"RX 6550|RX 6500|RX 6400|RX 6300|PRO W6400|PRO W6500", "gfx1034"),
+    (r"RX 6550|RX 6500|RX 6450|RX 6400|RX 6300|PRO W6400|PRO W6500|PRO W6300", "gfx1034"),
 ]
 
 
diff --git a/studio/install_python_stack.py b/studio/install_python_stack.py
index e96a55734d6..908772e7837 100644
--- a/studio/install_python_stack.py
+++ b/studio/install_python_stack.py
@@ -1680,7 +1680,7 @@ def _dedup_pick(
     # to gfx103X-all, so the exact id picks no different wheel.
     (r"RX 6950|RX 6900|RX 6850|RX 6800|RX 6750|RX 6700|PRO W6800|PRO W6900", "gfx1030"),  # Navi 21
     (r"RX 6650|RX 6600|PRO W6600|PRO W6650", "gfx1032"),  # Navi 23
-    (r"RX 6550|RX 6500|RX 6400|RX 6300|PRO W6400|PRO W6500", "gfx1034"),  # Navi 24
+    (r"RX 6550|RX 6500|RX 6450|RX 6400|RX 6300|PRO W6400|PRO W6500|PRO W6300", "gfx1034"),  # Navi 24
 ]
 
 
diff --git a/studio/setup.ps1 b/studio/setup.ps1
index 368f36d8760..f2aefbc9ff1 100644
--- a/studio/setup.ps1
+++ b/studio/setup.ps1
@@ -2738,7 +2738,7 @@ if (-not $HasNvidiaSmi) {
                 @{ P = "780M|760M|740M|Phoenix|Hawk Point|Z1 Extreme|Z2 Extreme"; A = "gfx1103" }  # RDNA 3 iGPU (Phoenix / Hawk Point)
                 @{ P = "RX 6950|RX 6900|RX 6850|RX 6800|RX 6750|RX 6700|PRO W6800|PRO W6900"; A = "gfx1030" }  # RDNA 2 (Navi 21) -- gfx103X family
                 @{ P = "RX 6650|RX 6600|PRO W6600|PRO W6650";                  A = "gfx1032" }  # RDNA 2 (Navi 23) -- gfx103X family
-                @{ P = "RX 6550|RX 6500|RX 6400|RX 6300|PRO W6400|PRO W6500";  A = "gfx1034" }  # RDNA 2 (Navi 24) -- gfx103X family
+                @{ P = "RX 6550|RX 6500|RX 6450|RX 6400|RX 6300|PRO W6400|PRO W6500|PRO W6300";  A = "gfx1034" }  # RDNA 2 (Navi 24) -- gfx103X family
             )
             function Get-GfxArchFromGpuName {
                 param([AllowNull()][string]$Name, [object[]]$Table)
diff --git a/studio/setup.sh b/studio/setup.sh
index 028e43032f3..ce9112424fb 100755
--- a/studio/setup.sh
+++ b/studio/setup.sh
@@ -2325,7 +2325,7 @@ _setup_supported_gfx_from_name() {
         *"780M"*|*"760M"*|*"740M"*|*"Phoenix"*|*"Hawk Point"*|*"Z1 Extreme"*|*"Z2 Extreme"*)            _sup_gfx_out="gfx1103" ;;  # RDNA 3 iGPU (Phoenix / Hawk Point)
         *"RX 6950"*|*"RX 6900"*|*"RX 6850"*|*"RX 6800"*|*"RX 6750"*|*"RX 6700"*|*"PRO W6800"*|*"PRO W6900"*) _sup_gfx_out="gfx1030" ;;  # RDNA 2 (Navi 21)
         *"RX 6650"*|*"RX 6600"*|*"PRO W6600"*|*"PRO W6650"*)                                            _sup_gfx_out="gfx1032" ;;  # RDNA 2 (Navi 23)
-        *"RX 6550"*|*"RX 6500"*|*"RX 6400"*|*"RX 6300"*|*"PRO W6400"*|*"PRO W6500"*)                    _sup_gfx_out="gfx1034" ;;  # RDNA 2 (Navi 24)
+        *"RX 6550"*|*"RX 6500"*|*"RX 6450"*|*"RX 6400"*|*"RX 6300"*|*"PRO W6400"*|*"PRO W6500"*|*"PRO W6300"*)                    _sup_gfx_out="gfx1034" ;;  # RDNA 2 (Navi 24)
     esac
     [ -n "$_sup_gfx_out" ] || return 1
     printf '%s\n' "$_sup_gfx_out"
diff --git a/tests/studio/install/test_rocm_arch_table_parity.py b/tests/studio/install/test_rocm_arch_table_parity.py
index 463fe7e7534..16025b1745e 100644
--- a/tests/studio/install/test_rocm_arch_table_parity.py
+++ b/tests/studio/install/test_rocm_arch_table_parity.py
@@ -311,6 +311,10 @@ def _match_ps(rows: list[tuple[str, str]], gpu_name: str) -> str | None:
     ("AMD Radeon RX 6950 XT", "gfx103X-all"),
     ("AMD Radeon RX 6850M XT", "gfx103X-all"),
     ("AMD Radeon RX 6550M", "gfx103X-all"),
+    # The rest of the Navi 24 line, found the same way: enumerating the shipped RDNA 2
+    # SKUs against the table shows these two were the only remaining names it missed.
+    ("AMD Radeon RX 6450M", "gfx103X-all"),
+    ("AMD Radeon PRO W6300", "gfx103X-all"),
 ]
 
 # Exact gfx ids, transcribed from AMD's ROCm compatibility matrix (the "Radeon GPU" list at
diff --git a/tests/studio/test_amd_name_arch_r9700.ps1 b/tests/studio/test_amd_name_arch_r9700.ps1
index 303d217f1e7..5986bc3cbb3 100644
--- a/tests/studio/test_amd_name_arch_r9700.ps1
+++ b/tests/studio/test_amd_name_arch_r9700.ps1
@@ -75,6 +75,8 @@ $otherNames = @(
     @{ N = "AMD Radeon RX 6950 XT";        A = "gfx1030" },
     @{ N = "AMD Radeon RX 6850M XT";       A = "gfx1030" },
     @{ N = "AMD Radeon RX 6550M";          A = "gfx1034" },
+    @{ N = "AMD Radeon RX 6450M";          A = "gfx1034" },
+    @{ N = "AMD Radeon PRO W6300";         A = "gfx1034" },
     @{ N = "ATI Radeon 9700 PRO";          A = $null },
     @{ N = "ATI Radeon 9800 PRO";          A = $null },
     @{ N = "AMD Radeon R9 Fury X";         A = $null },

From 4e987130d880e9257d612d3661262c8f833ca209 Mon Sep 17 00:00:00 2001
From: "pre-commit-ci[bot]"
 <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Date: Mon, 14 Sep 2026 07:33:20 +0000
Subject: [PATCH 4/6] [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci
---
 studio/install_python_stack.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/studio/install_python_stack.py b/studio/install_python_stack.py
index 908772e7837..76c25c7b9c1 100644
--- a/studio/install_python_stack.py
+++ b/studio/install_python_stack.py
@@ -1680,7 +1680,10 @@ def _dedup_pick(
     # to gfx103X-all, so the exact id picks no different wheel.
     (r"RX 6950|RX 6900|RX 6850|RX 6800|RX 6750|RX 6700|PRO W6800|PRO W6900", "gfx1030"),  # Navi 21
     (r"RX 6650|RX 6600|PRO W6600|PRO W6650", "gfx1032"),  # Navi 23
-    (r"RX 6550|RX 6500|RX 6450|RX 6400|RX 6300|PRO W6400|PRO W6500|PRO W6300", "gfx1034"),  # Navi 24
+    (
+        r"RX 6550|RX 6500|RX 6450|RX 6400|RX 6300|PRO W6400|PRO W6500|PRO W6300",
+        "gfx1034",
+    ),  # Navi 24
 ]
 
 

From b7ce811ad4d8a8dedbb439ec2f884d47431f742b Mon Sep 17 00:00:00 2001
From: danielhanchen <danielhanchen@gmail.com>
Date: Mon, 14 Sep 2026 09:13:24 +0000
Subject: [PATCH 5/6] Tighten the comments this change adds

Comments only, no behaviour change. Keeps every load-bearing fact: the issue
number, that 6850M XT is Navi 22 filed under the Navi 21 arm deliberately, that
every RDNA 2 row resolves to gfx103X-all so the exact id picks no different
wheel, and that RDNA 1 stays declined on purpose.
---
 .../tests/test_torch_cpu_build_on_nvidia_host.py       | 10 ++++------
 studio/install_python_stack.py                         |  7 +++----
 tests/studio/install/test_rocm_arch_table_parity.py    |  7 +++----
 3 files changed, 10 insertions(+), 14 deletions(-)

diff --git a/studio/backend/tests/test_torch_cpu_build_on_nvidia_host.py b/studio/backend/tests/test_torch_cpu_build_on_nvidia_host.py
index 01f7eb67cfa..fe18d47137e 100644
--- a/studio/backend/tests/test_torch_cpu_build_on_nvidia_host.py
+++ b/studio/backend/tests/test_torch_cpu_build_on_nvidia_host.py
@@ -1184,10 +1184,9 @@ def test_an_amd_card_named_only_by_its_marketing_string_establishes_a_mismatch(
 ):
     """A Windows driver that wrote no AdapterFamily leaves the name as the only arch source.
 
-    Silence here is the worst of both: the card is one the installers do ship a wheel for,
-    so leaving it out of the mismatch drops it from Settings > System entirely and the panel
-    says "No visible GPU" beside a card the OS is listing (#10468). The name table decides,
-    which is why a gap in it costs the message as well as the wheel.
+    Dropping a card the installers do ship a wheel for also drops it from Settings > System,
+    so the panel reads "No visible GPU" beside a card the OS lists (#10468). The name table
+    decides both, so a gap in it costs the message as well as the wheel.
     """
     _shared_setup_1(monkeypatch, tmp_path)
     monkeypatch.setattr(hw, "_linux_kfd_reports_an_amd_gpu", lambda: False)
@@ -1200,8 +1199,7 @@ def test_an_amd_card_named_only_by_its_marketing_string_establishes_a_mismatch(
     for device in covered:
         assert hw._devices_that_can_establish_a_mismatch([device]) == [device], device["name"]
 
-    # The other direction still holds: RDNA 1 is declined on purpose, so it must stay quiet
-    # rather than offer a repair that reinstalls the same CPU wheel.
+    # RDNA 1 is declined on purpose: a repair here would reinstall the same CPU wheel.
     declined = [
         {"vendor": "amd", "name": "AMD Radeon RX 5700 XT", "index": 0, "gfx_candidates": []}
     ]
diff --git a/studio/install_python_stack.py b/studio/install_python_stack.py
index 76c25c7b9c1..6ad50e97bbb 100644
--- a/studio/install_python_stack.py
+++ b/studio/install_python_stack.py
@@ -1674,10 +1674,9 @@ def _dedup_pick(
     (r"RX 7600|RX 7700S|RX 7650|PRO W7600|PRO W7500", "gfx1102"),  # Navi 33
     # RDNA 3 iGPU (Phoenix / Hawk Point)
     (r"780M|760M|740M|Phoenix|Hawk Point|Z1 Extreme|Z2 Extreme", "gfx1103"),
-    # RDNA 2. The refresh parts carry their own number, matched nothing, and took CPU torch on
-    # hosts where the name is the only arch source (#10468): 6950 XT, 6850M XT, 6550M. 6850M XT
-    # is Navi 22 and joins the 6750 / 6700 arm as those already do -- every RDNA 2 row resolves
-    # to gfx103X-all, so the exact id picks no different wheel.
+    # RDNA 2 refresh parts carry their own number, so 6950 XT / 6850M XT / 6550M matched nothing
+    # and took CPU torch where the name is the only arch source (#10468). 6850M XT is Navi 22,
+    # filed here as 6750 / 6700 already are: every RDNA 2 row resolves to gfx103X-all.
     (r"RX 6950|RX 6900|RX 6850|RX 6800|RX 6750|RX 6700|PRO W6800|PRO W6900", "gfx1030"),  # Navi 21
     (r"RX 6650|RX 6600|PRO W6600|PRO W6650", "gfx1032"),  # Navi 23
     (
diff --git a/tests/studio/install/test_rocm_arch_table_parity.py b/tests/studio/install/test_rocm_arch_table_parity.py
index 16025b1745e..196db25056c 100644
--- a/tests/studio/install/test_rocm_arch_table_parity.py
+++ b/tests/studio/install/test_rocm_arch_table_parity.py
@@ -306,13 +306,12 @@ def _match_ps(rows: list[tuple[str, str]], gpu_name: str) -> str | None:
     ("AMD Radeon RX 6700 XT", "gfx103X-all"),
     ("AMD Radeon RX 6600 XT", "gfx103X-all"),
     ("AMD Radeon RX 6500 XT", "gfx103X-all"),
-    # The RDNA 2 refresh parts, which hold their own number rather than the one already listed.
-    # All three matched nothing in all seven copies and took CPU torch (#10468).
+    # RDNA 2 refresh parts: their own number, so all three matched nothing in all seven
+    # copies and took CPU torch (#10468).
     ("AMD Radeon RX 6950 XT", "gfx103X-all"),
     ("AMD Radeon RX 6850M XT", "gfx103X-all"),
     ("AMD Radeon RX 6550M", "gfx103X-all"),
-    # The rest of the Navi 24 line, found the same way: enumerating the shipped RDNA 2
-    # SKUs against the table shows these two were the only remaining names it missed.
+    # The rest of Navi 24, from enumerating the shipped RDNA 2 SKUs against the table.
     ("AMD Radeon RX 6450M", "gfx103X-all"),
     ("AMD Radeon PRO W6300", "gfx103X-all"),
 ]

From 4554fc675e6466d6eeb6e93d0e05ba8ce037aaca Mon Sep 17 00:00:00 2001
From: danielhanchen <danielhanchen@gmail.com>
Date: Tue, 15 Sep 2026 10:17:14 +0000
Subject: [PATCH 6/6] Tighten the comments this change adds for PR #10746

---
 .../backend/tests/test_torch_cpu_build_on_nvidia_host.py   | 7 ++-----
 studio/install_python_stack.py                             | 5 ++---
 tests/studio/install/test_rocm_arch_table_parity.py        | 5 ++---
 tests/studio/test_amd_name_arch_r9700.ps1                  | 2 +-
 4 files changed, 7 insertions(+), 12 deletions(-)

diff --git a/studio/backend/tests/test_torch_cpu_build_on_nvidia_host.py b/studio/backend/tests/test_torch_cpu_build_on_nvidia_host.py
index fe18d47137e..aa1b6c68ade 100644
--- a/studio/backend/tests/test_torch_cpu_build_on_nvidia_host.py
+++ b/studio/backend/tests/test_torch_cpu_build_on_nvidia_host.py
@@ -1182,11 +1182,8 @@ def test_an_ordinary_intel_igpu_does_not_establish_a_mismatch(monkeypatch, tmp_p
 def test_an_amd_card_named_only_by_its_marketing_string_establishes_a_mismatch(
     monkeypatch, tmp_path
 ):
-    """A Windows driver that wrote no AdapterFamily leaves the name as the only arch source.
-
-    Dropping a card the installers do ship a wheel for also drops it from Settings > System,
-    so the panel reads "No visible GPU" beside a card the OS lists (#10468). The name table
-    decides both, so a gap in it costs the message as well as the wheel.
+    """With no AdapterFamily from the driver, the name is the only arch source, and a
+    gap in the name table costs both the wheel and the "No visible GPU" panel (#10468).
     """
     _shared_setup_1(monkeypatch, tmp_path)
     monkeypatch.setattr(hw, "_linux_kfd_reports_an_amd_gpu", lambda: False)
diff --git a/studio/install_python_stack.py b/studio/install_python_stack.py
index f1400297469..9e6285ee6b3 100644
--- a/studio/install_python_stack.py
+++ b/studio/install_python_stack.py
@@ -1922,9 +1922,8 @@ def _dedup_pick(
     (r"RX 7600|RX 7700S|RX 7650|PRO W7600|PRO W7500", "gfx1102"),  # Navi 33
     # RDNA 3 iGPU (Phoenix / Hawk Point)
     (r"780M|760M|740M|Phoenix|Hawk Point|Z1 Extreme|Z2 Extreme", "gfx1103"),
-    # RDNA 2 refresh parts carry their own number, so 6950 XT / 6850M XT / 6550M matched nothing
-    # and took CPU torch where the name is the only arch source (#10468). 6850M XT is Navi 22,
-    # filed here as 6750 / 6700 already are: every RDNA 2 row resolves to gfx103X-all.
+    # RDNA 2 refresh numbers (6950 / 6850M / 6550M) matched nothing and took CPU torch (#10468).
+    # 6850M XT is Navi 22, filed here like 6750 / 6700: every RDNA 2 row resolves to gfx103X-all.
     (r"RX 6950|RX 6900|RX 6850|RX 6800|RX 6750|RX 6700|PRO W6800|PRO W6900", "gfx1030"),  # Navi 21
     (r"RX 6650|RX 6600|PRO W6600|PRO W6650", "gfx1032"),  # Navi 23
     (
diff --git a/tests/studio/install/test_rocm_arch_table_parity.py b/tests/studio/install/test_rocm_arch_table_parity.py
index 196db25056c..b595add0e5a 100644
--- a/tests/studio/install/test_rocm_arch_table_parity.py
+++ b/tests/studio/install/test_rocm_arch_table_parity.py
@@ -306,12 +306,11 @@ def _match_ps(rows: list[tuple[str, str]], gpu_name: str) -> str | None:
     ("AMD Radeon RX 6700 XT", "gfx103X-all"),
     ("AMD Radeon RX 6600 XT", "gfx103X-all"),
     ("AMD Radeon RX 6500 XT", "gfx103X-all"),
-    # RDNA 2 refresh parts: their own number, so all three matched nothing in all seven
-    # copies and took CPU torch (#10468).
+    # RDNA 2 refresh numbers: matched nothing in all seven copies, took CPU torch (#10468).
     ("AMD Radeon RX 6950 XT", "gfx103X-all"),
     ("AMD Radeon RX 6850M XT", "gfx103X-all"),
     ("AMD Radeon RX 6550M", "gfx103X-all"),
-    # The rest of Navi 24, from enumerating the shipped RDNA 2 SKUs against the table.
+    # The rest of Navi 24, from the shipped RDNA 2 SKU list.
     ("AMD Radeon RX 6450M", "gfx103X-all"),
     ("AMD Radeon PRO W6300", "gfx103X-all"),
 ]
diff --git a/tests/studio/test_amd_name_arch_r9700.ps1 b/tests/studio/test_amd_name_arch_r9700.ps1
index 5986bc3cbb3..474db48d1e0 100644
--- a/tests/studio/test_amd_name_arch_r9700.ps1
+++ b/tests/studio/test_amd_name_arch_r9700.ps1
@@ -71,7 +71,7 @@ $otherNames = @(
     @{ N = "AMD Radeon RX 6900 XT";        A = "gfx1030" },
     @{ N = "AMD Radeon RX 6600 XT";        A = "gfx1032" },
     @{ N = "AMD Radeon RX 6500 XT";        A = "gfx1034" },
-    # RDNA 2 refresh parts: their own number, so the arms above never covered them (#10468).
+    # RDNA 2 refresh numbers, not covered by the arms above (#10468).
     @{ N = "AMD Radeon RX 6950 XT";        A = "gfx1030" },
     @{ N = "AMD Radeon RX 6850M XT";       A = "gfx1030" },
     @{ N = "AMD Radeon RX 6550M";          A = "gfx1034" },