AMD Radeon RX 7800M vs NVIDIA N1 20SM Comparison

Head-to-Head Benchmarks

The recorded data for the AMD Radeon RX 7800M and the NVIDIA N1 20SM contains no direct head-to-head benchmark comparisons. The head-to-head benchmark array is empty, and neither part has a wins tally against the other. The AMD Radeon RX 7800M has a full set of ten benchmark results, while the NVIDIA N1 20SM has no recorded benchmark scores at all. This absence of overlapping test data means a direct performance comparison cannot be established from the database. The AMD part carries an average benchmark score of 27,883, while the NVIDIA part reports an average benchmark score of 0 due to the lack of measurements.

The AMD Radeon RX 7800M shows a percentile rank of 73 across all GPUs, placing it above the median. Its nearest rivals in the database include the AMD Radeon Pro Vega 20 with an average score of 27,839 and a delta of 0.2 percent, the AMD Radeon Pro W5500X at 27,973 with a delta of -0.3 percent, the NVIDIA GeForce GTX 980 Ti at 28,020 with a delta of -0.5 percent, and the AMD FirePro S7150 at 28,117 with a delta of -0.8 percent. These deltas are all within one percent, indicating the RX 7800M sits in a tightly clustered performance band. The NVIDIA N1 20SM has no nearest rivals listed, reinforcing that its benchmark profile is absent from the database.

Within the RX 7800M's individual tests, the highest recorded score is 126,668 in Geekbench Vulkan, followed by 120,778 in Geekbench OpenCL. The 3DMark Steel Nomad DX12 test yields 2,994. In Passmark tests, the G3D score is 17,613, GPU compute is 9,342, G2D is 892, DirectX 11 is 176, DirectX 9 is 174, DirectX 10 is 99, and DirectX 12 is 89. These scores show a wide spread across API generations and workload types. The DirectX 12 score of 89 is the lowest Passmark result, while the G3D score dominates the Passmark suite. The compute-oriented Geekbench scores are substantially higher than the 3DMark result, indicating strong general compute performance relative to a specific DX12 workload.

Architecture Differences

The AMD Radeon RX 7800M uses the Navi 32 chip built on RDNA 3.0 architecture, with the codename Wheat Nas. It belongs to the Navi Mobile generation within the Radeon RX 7000 series. The NVIDIA N1 20SM uses the GB20B chip on Blackwell 2.0 architecture and belongs to the Blackwell IGP generation. Both parts are manufactured on a 5 nm process at TSMC. The AMD die measures 346 mm² and contains 28,100 million transistors, giving a transistor density of 81.2 million per mm². The NVIDIA die is larger at 382 mm², but its transistor count is listed as unknown, so no density figure can be derived.

The AMD part features 3,840 shading units, 240 texture mapping units, and 96 raster operation pipelines. It includes 60 ray tracing cores and no tensor cores. The NVIDIA part has 2,560 shading units, 160 TMUs, and only 24 ROPs. It includes 20 ray tracing cores and 80 tensor cores. The AMD configuration provides roughly 50 percent more shading units and TMUs, while the NVIDIA part has a 4x advantage in tensor core count. The ROP difference is substantial: 96 on the AMD side versus 24 on the NVIDIA side. This results in a pixel rate of 224.2 GPixel/s for AMD and 56.30 GPixel/s for NVIDIA.

Clock behavior differs notably. The AMD base clock is 1,295 MHz with a boost of 2,335 MHz and a game clock of 2,145 MHz. The NVIDIA base clock is much lower at 741 MHz, but the boost clock reaches 2,346 MHz, slightly higher than AMD's boost. Memory clocks also differ: AMD lists 2,250 MHz with 18 Gbps effective, while NVIDIA lists 1,067 MHz with 8.5 Gbps effective. The AMD memory subsystem uses 12 GB of GDDR6 on a 192-bit bus, yielding 432.0 GB/s of bandwidth. The NVIDIA part uses 128 GB of LPDDR5X on a 256-bit bus, yielding 273.2 GB/s. The NVIDIA memory capacity is over ten times larger, but its bandwidth is about 37 percent lower.

Compute throughput shows a wide gap. The AMD FP32 rating is 35.87 TFLOPS, and FP16 is also 35.87 TFLOPS at a 1:1 ratio. The NVIDIA FP32 rating is 12.01 TFLOPS, with FP16 also at 12.01 TFLOPS at 1:1. Texture rate is 560.4 GTexel/s for AMD versus 375.4 GTexel/s for NVIDIA. The AMD part uses a PCIe 4.0 x16 interface, while the NVIDIA part uses PCIe 5.0 x16. Both are IGP form factors with no power connectors. The AMD TDP is listed at 180 W, while the NVIDIA TDP is unknown. API support differs sharply: AMD lists DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, while the NVIDIA N1 20SM lists N/A for DirectX, OpenGL, and Vulkan.

Where Each One Wins

The AMD Radeon RX 7800M wins in every measured benchmark category because it is the only one of the two with recorded benchmark data. Its 3DMark Steel Nomad DX12 score of 2,994 and its Geekbench OpenCL score of 120,778 demonstrate measurable performance in both gaming and compute workloads. The Passmark G3D score of 17,613 indicates strong overall graphics performance, while the GPU compute score of 9,342 shows additional compute capability. The RX 7800M also leads in raw specification categories that are likely to influence performance: higher shading unit count, higher TMU count, much higher ROP count, higher pixel rate, higher texture rate, and higher FP32 throughput.

The NVIDIA N1 20SM has no benchmark wins in the database. Its strengths appear in architectural features rather than measured results. It has 80 tensor cores compared to none on the AMD part, which suggests potential in workloads that use tensor operations. Its memory capacity of 128 GB dwarfs the AMD 12 GB, which may benefit large dataset residency. The NVIDIA part also uses a PCIe 5.0 x16 interface versus PCIe 4.0 x16 on AMD, and its boost clock of 2,346 MHz slightly exceeds the AMD boost of 2,335 MHz. The NVIDIA part has a smaller FP32 throughput at 12.01 TFLOPS, but it also consumes no listed TDP, whereas AMD lists 180 W. For use cases where tensor cores or very large memory capacity are decisive, the NVIDIA part has an architectural edge, but no benchmark evidence supports a performance win.

The AMD part also leads in API support coverage. It exposes DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4, while the NVIDIA part lists N/A across all three. This makes the RX 7800M the only one of the two with documented compatibility for standard graphics APIs. The AMD part also has a much higher ROP count, which typically benefits fill-rate-bound scenarios. The pixel rate of 224.2 GPixel/s versus 56.30 GPixel/s indicates a large advantage in rasterization throughput.

The Verdict

The database contains no direct head-to-head results, so the verdict must rely on the recorded benchmark scores and architectural specifications. The AMD Radeon RX 7800M is the only part with measured performance data. Its average benchmark score of 27,883 places it at the 73rd percentile among all GPUs. Its nearest rivals are all within one percent in average score, confirming that it occupies a competitive position in its segment. The NVIDIA N1 20SM has no benchmark scores, no average score, and no nearest rivals. Its percentile rank of 50 is a neutral placeholder rather than a measured result.

For any workload where benchmark evidence matters, the RX 7800M is the only defensible choice from this data. It delivers 35.87 TFLOPS of FP32 performance, 432.0 GB/s of memory bandwidth, and support for DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4. The NVIDIA N1 20SM offers 12.01 TFLOPS of FP32, 273.2 GB/s of bandwidth, and no API support listed. The NVIDIA part does have 128 GB of LPDDR5X memory and 80 tensor cores, which are unique features in this comparison, but without benchmark scores these cannot be translated into measured performance advantages.

The RX 7800M is the part a user would select based on the recorded data. The N1 20SM is an unmeasured part with no performance claims in the database. The AMD part has a 180 W TDP, while the NVIDIA TDP is unknown, so power comparison is incomplete. The release dates also differ: the RX 7800M launched on September 10, 2024, and the N1 20SM is dated May 31, 2026. The AMD part has a predecessor listed as Polaris Mobile, while the NVIDIA part has no predecessor. Neither part has a successor listed.

FAQ

Q: Which GPU has a higher average benchmark score?

A: The AMD Radeon RX 7800M has an average benchmark score of 27,883, while the NVIDIA N1 20SM has an average benchmark score of 0 because it has no recorded benchmark results.

Q: How do the two GPUs compare in memory capacity and bandwidth?

A: The NVIDIA N1 20SM has 128 GB of LPDDR5X memory on a 256-bit bus with 273.2 GB/s bandwidth. The AMD Radeon RX 7800M has 12 GB of GDDR6 memory on a 192-bit bus with 432.0 GB/s bandwidth. The NVIDIA part has far more capacity, but the AMD part has higher bandwidth.

Q: What are the FP32 compute ratings for each GPU?

A: The AMD Radeon RX 7800M is rated at 35.87 TFLOPS for FP32, and the NVIDIA N1 20SM is rated at 12.01 TFLOPS for FP32. Both parts list FP16 at the same values with a 1:1 ratio.

Q: Which GPU supports DirectX 12 Ultimate?

A: The AMD Radeon RX 7800M supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The NVIDIA N1 20SM lists N/A for DirectX, OpenGL, and Vulkan.

Q: How do the shading unit counts differ?

A: The AMD Radeon RX 7800M has 3,840 shading units, while the NVIDIA N1 20SM has 2,560 shading units. The AMD part also has 240 TMUs versus 160, and 96 ROPs versus 24.

Q: Does the NVIDIA N1 20SM have any tensor cores?

A: Yes, the NVIDIA N1 20SM has 80 tensor cores. The AMD Radeon RX 7800M has no tensor cores listed. The NVIDIA part also has 20 ray tracing cores, compared to 60 on the AMD part.