AMD Radeon RX 6950 XT vs AMD Radeon RX 7900M Comparison

FAQ

Q: Which GPU has the higher average benchmark score?

A: The AMD Radeon RX 7900M has a significantly higher average benchmark score of 97,487 compared to the RX 6950 XT's 58,392.

Q: How do the two cards compare in the 3DMark Steel Nomad DX12 test?

A: The RX 6950 XT wins narrowly, scoring 4,235 against the RX 7900M's 4,201, a difference of 0.8%.

Q: What is the largest performance gap between the two in the head-to-head tests?

A: The largest gap is in Geekbench OpenCL, where the RX 6950 XT scores 205,998 versus 129,499 for the RX 7900M, a 37.1% advantage.

Q: Which card has a higher transistor count?

A: The RX 7900M has 57,700 million transistors, more than double the RX 6950 XT's 26,800 million.

Q: What are the power requirements for the RX 6950 XT?

A: The RX 6950 XT has a 335 W TDP, requires a 700 W suggested PSU, and uses two 8-pin power connectors.

Q: Which card uses a smaller manufacturing process node?

A: The RX 7900M is built on a 5 nm process, while the RX 6950 XT uses TSMC's 7 nm node.

Architecture Differences

The RX 7900M and RX 6950 XT come from different Radeon generations, and the architectural split is substantial. The RX 7900M is part of the Radeon RX 7000 series, based on the Navi 31 chip with the RDNA 3.0 architecture and the Plum Bonito codename. It belongs to the Navi Mobile (RX 7000M) generation, indicating a mobile-first design. In contrast, the RX 6950 XT is from the Radeon RX 6000 series, built on the Navi 21 chip with RDNA 2.0 architecture, and is part of the Navi II (RX 6000) generation, a desktop-oriented part.

The manufacturing process differs significantly. The RX 7900M uses a 5 nm node from TSMC, while the RX 6950 XT uses TSMC's 7 nm node. This process advantage is reflected in transistor density: the RX 7900M packs 109.1 million transistors per square millimeter on a 529 mm² die, whereas the RX 6950 XT has 51.5 million transistors per square millimeter on a 520 mm² die. Despite similar die sizes, the RX 7900M houses 57,700 million transistors versus 26,800 million for the RX 6950 XT, a 2.15x count difference.

The compute configurations also differ. The RX 7900M has 4,608 shading units, 288 texture mapping units, and 192 ROPs, plus 72 ray tracing cores. The RX 6950 XT has 5,120 shading units, 320 TMUs, 128 ROPs, and 80 ray tracing cores. Interestingly, the RX 6950 XT has more shading units, TMUs, and RT cores, but fewer ROPs. The RX 7900M compensates with higher clock-driven throughput metrics: its pixel rate is 401.3 GPixel/s versus 295.7 GPixel/s, and its FP32 compute is 38.52 TFLOPS versus 23.65 TFLOPS. The RX 7900M also reaches 77.05 TFLOPS FP16 (2:1) against 47.31 TFLOPS for the RX 6950 XT.

Both cards share identical API support: DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. Memory subsystems are also identical in capacity and bandwidth: 16 GB of GDDR6 on a 256-bit bus with 576.0 GB/s bandwidth, and both run memory at 2250 MHz with 18 Gbps effective speed. Clocks differ: the RX 7900M has a base of 1825 MHz and boost of 2090 MHz, while the RX 6950 XT has a base of 1860 MHz, a boost of 2310 MHz, and a game clock of 2100 MHz.

The physical and power profiles are markedly different. The RX 7900M is an integrated graphics processor (IGP) with no power connectors and a 180 W TDP, while the RX 6950 XT is a triple-slot card with 2x 8-pin connectors, a 335 W TDP, and a 700 W suggested PSU. The RX 7900M is listed as "Portable Device Dependent" for display outputs, while the RX 6950 XT offers 1x HDMI 2.1 and 2x DisplayPort 1.4a. The RX 6950 XT has physical dimensions of 267 mm length, 120 mm height, and 50 mm width. Production status also differs: the RX 7900M is Active, while the RX 6950 XT is End-of-life.

Where Each One Wins

The benchmark data paints a clear picture: the RX 6950 XT wins in every head-to-head test recorded, taking 3 wins to 0 for the RX 7900M. However, the magnitude and context of those wins vary considerably, which changes how each card is best positioned.

The RX 6950 XT dominates in compute-oriented workloads. Its Geekbench OpenCL score of 205,998 is 37.1% higher than the RX 7900M's 129,499, a massive gap that suggests the desktop card is far stronger in general-purpose compute and OpenCL-accelerated applications. This makes the RX 6950 XT the better choice for users who prioritize raw compute throughput in tasks like rendering, simulation, or other OpenCL-heavy workloads.

The RX 6950 XT also leads in Vulkan, though by a much smaller margin: 165,212 versus 158,760, a 3.9% advantage. This indicates that in Vulkan-based gaming or applications, the RX 6950 XT holds a modest but real edge. In the 3DMark Steel Nomad DX12 test, the RX 6950 XT wins again but by only 0.8% (4,235 versus 4,201), essentially a statistical tie. This suggests that in pure DirectX 12 rasterization, the two cards are near-peers despite the architectural differences.

On the other hand, the RX 7900M's advantage lies in its overall average benchmark score. At 97,487, it sits well above the RX 6950 XT's 58,392. This is driven by the RX 6950 XT's inclusion of several low-scoring legacy tests (PassMark DirectX 9, 10, 11, 12, G2D, G3D, and GPU compute), which drag down its average. The RX 7900M's average places it in the 94th percentile of all GPUs, while the RX 6950 XT sits in the 88th percentile. So while the RX 6950 XT wins the specific head-to-head tests, the RX 7900M has a better overall standing in the database's broader ranking.

The RX 7900M also wins on efficiency and form factor. It has a 180 W TDP versus 335 W for the RX 6950 XT, and it is an IGP with no power connectors, making it suitable for portable or compact systems. The RX 6950 XT requires a triple-slot cooler, two 8-pin connectors, and a 700 W PSU, which confines it to desktop builds with ample space and power delivery. For mobile or low-power scenarios, the RX 7900M is the only viable option.

Specification Differences

The two cards differ in nearly every specification category except memory and API support. Here are the fields where they diverge:

• Process Node: RX 7900M is 5 nm; RX 6950 XT is 7 nm.
• Transistors: RX 7900M has 57,700 million; RX 6950 XT has 26,800 million.
• Transistor Density: RX 7900M has 109.1M / mm²; RX 6950 XT has 51.5M / mm².
• Base Clock: RX 7900M is 1825 MHz; RX 6950 XT is 1860 MHz.
• Boost Clock: RX 7900M is 2090 MHz; RX 6950 XT is 2310 MHz.
• Game Clock: RX 7900M has none listed; RX 6950 XT has 2100 MHz.
• Shading Units: RX 7900M has 4,608; RX 6950 XT has 5,120.
• TMUs: RX 7900M has 288; RX 6950 XT has 320.
• ROPs: RX 7900M has 192; RX 6950 XT has 128.
• RT Cores: RX 7900M has 72; RX 6950 XT has 80.
• Pixel Rate: RX 7900M is 401.3 GPixel/s; RX 6950 XT is 295.7 GPixel/s.
• Texture Rate: RX 7900M is 601.9 GTexel/s; RX 6950 XT is 739.2 GTexel/s.
• FP32: RX 7900M is 38.52 TFLOPS; RX 6950 XT is 23.65 TFLOPS.
• FP16: RX 7900M is 77.05 TFLOPS (2:1); RX 6950 XT is 47.31 TFLOPS (2:1).
• TDP: RX 7900M is 180 W; RX 6950 XT is 335 W.
• Slot Width: RX 7900M is IGP; RX 6950 XT is Triple-slot.
• Power Connectors: RX 7900M has none; RX 6950 XT has 2x 8-pin.
• Suggested PSU: RX 7900M has none; RX 6950 XT has 700 W.
• Display Outputs: RX 7900M is Portable Device Dependent; RX 6950 XT is 1x HDMI 2.1, 2x DisplayPort 1.4a.
• Dimensions: RX 7900M has none listed; RX 6950 XT is 267 mm x 120 mm x 50 mm.
• Production Status: RX 7900M is Active; RX 6950 XT is End-of-life.
• Release Date: RX 7900M is 2023-10-18; RX 6950 XT is 2022-05-09.
• Predecessor: RX 7900M is Polaris Mobile; RX 6950 XT is Navi.
• Successor: RX 7900M has none; RX 6950 XT is Navi III.
• Launch MSRP: RX 7900M has none; RX 6950 XT has 1,099 USD.

Memory is identical: both have 16 GB GDDR6, 256-bit bus, 576.0 GB/s bandwidth, and 2250 MHz memory clock at 18 Gbps effective. Both use PCIe 4.0 x16 and share the same DirectX, OpenGL, and Vulkan versions.

Head-to-Head Benchmarks

The recorded head-to-head data covers three tests, and the RX 6950 XT wins all three. The closest contest is in 3DMark Steel Nomad DX12, where the RX 6950 XT scores 4,235 against 4,201 for the RX 7900M. The delta is only 0.8%, well within run-to-run variance for most benchmarking. This indicates that in a modern DirectX 12 rasterization workload, the two GPUs perform at essentially the same level, despite the RX 7900M's higher FP32 throughput and the RX 6950 XT's higher boost clock.

The Geekbench Vulkan test shows a clearer separation. The RX 6950 XT scores 165,212, which is 3.9% higher than the RX 7900M's 158,760. This is a modest but consistent lead, suggesting that the RX 6950 XT's higher shading unit count (5,120 versus 4,608) and boost clock (2310 MHz versus 2090 MHz) give it a tangible advantage in Vulkan API workloads. The RX 7900M's RDNA 3.0 architecture does not fully close this gap in this particular test.

The biggest win for the RX 6950 XT comes in Geekbench OpenCL. Here, the RX 6950 XT scores 205,998 versus 129,499 for the RX 7900M, a delta of 37.1%. This is a substantial margin, indicating that the RX 6950 XT is far more effective in OpenCL compute workloads. The RX 7900M's higher FP32 TFLOPS (38.52 versus 23.65) does not translate into OpenCL performance, likely due to driver, memory subsystem, or architectural scheduling differences. This result drives the overall benchmark split: the RX 6950 XT wins all three head-to-head tests, with the OpenCL result being the decisive factor.

Notably, the RX 6950 XT also has a Geekbench Metal score of 222,653, which is not available for the RX 7900M in the database. This additional data point, while not part of the head-to-head set, reinforces the RX 6950 XT's strong compute showing across multiple APIs. The RX 6950 XT also has PassMark scores (DirectX 9: 303, DirectX 10: 164, DirectX 11: 300, DirectX 12: 114, G2D: 1063, G3D: 28070, GPU compute: 14199), which the RX 7900M lacks in the database. These extra scores contribute to the RX 6950 XT's lower average benchmark score (58,392) due to the low legacy DirectX results, but they do not affect the head-to-head comparison.

The Verdict

The data shows a clear split between these two cards, and the choice depends entirely on the use case and system constraints.

For users building or upgrading a desktop system with ample power and space, the AMD Radeon RX 6950 XT is the stronger performer in the recorded head-to-head benchmarks. It wins all three tests, including a 37.1% advantage in Geekbench OpenCL and a 3.9% lead in Geekbench Vulkan. Its 3DMark Steel Nomad DX12 score of 4,235 effectively ties with the RX 7900M's 4,201, so in pure DirectX 12 gaming, the two are comparable. The RX 6950 XT also offers a full set of display outputs (1x HDMI 2.1, 2x DisplayPort 1.4a) and a triple-slot cooler with 2x 8-pin power connectors, requiring a 700 W PSU. This is a desktop-first card for compute-heavy workloads and Vulkan-based applications, and it carries a launch MSRP of 1,099 USD.

For users who need a mobile or low-power solution, the AMD Radeon RX 7900M is the only option among the two. It is an IGP with no power connectors, a 180 W TDP, and display outputs that are portable device dependent. Despite losing all head-to-head tests, its average benchmark score of 97,487 is far higher than the RX 6950 XT's 58,392, and it sits in the 94th percentile of all GPUs versus the 88th percentile for the RX 6950 XT. This discrepancy is driven by the RX 6950 XT's inclusion of low-scoring legacy PassMark tests, which drag down its average. The RX 7900M's 5 nm process, 57,700 million transistors, and 38.52 TFLOPS FP32 also indicate a more modern and efficient design.

The verdict from the recorded data is straightforward: the RX 6950 XT wins the head-to-head benchmark comparison, but the RX 7900M is the better-positioned card in the database's overall ranking and the only choice for portable systems. Users who prioritize raw compute and Vulkan performance on a desktop should select the RX 6950 XT; users who need a compact, low-power GPU with a higher average score should select the RX 7900M.