AMD Radeon RX 7800M vs NVIDIA N1X 40SM Comparison

Head-to-Head Benchmarks

The recorded database contains no direct head-to-head benchmark comparisons between the AMD Radeon RX 7800M and the NVIDIA N1X 40SM. The head-to-head array is empty, and neither part registers a win in that category. However, the AMD Radeon RX 7800M carries a full set of ten individual benchmark scores, while the NVIDIA N1X 40SM has no recorded benchmark entries at all. This absence of data is itself informative for any comparative analysis.

The AMD Radeon RX 7800M posts an average benchmark score of 27,883 across its suite. Its percentile rank among all GPUs in the database is 73, placing it above the median but not at the extreme high end. Its nearest rivals include the AMD Radeon Pro Vega 20 with an average score of 27,839, a delta of 0.2 percent, meaning the RX 7800M is essentially tied with that card. The AMD Radeon Pro W5500X scores 27,973, putting it 0.3 percent ahead of the RX 7800M. The NVIDIA GeForce GTX 980 Ti scores 28,020, 0.5 percent ahead. The AMD FirePro S7150 scores 28,117, 0.8 percent ahead. These are all sub-one-percent margins, indicating that the RX 7800M sits in a tightly clustered performance band relative to those older or workstation-oriented parts.

Within its own benchmark suite, the RX 7800M shows notable variation. In 3DMark Steel Nomad DX12 it scores 2,994. Geekbench OpenCL yields 120,778, while Geekbench Vulkan reaches 126,668. Passmark G3D produces 17,613, and Passmark GPU Compute delivers 9,342. The Passmark DirectX 10 score is 99, DirectX 11 is 176, DirectX 12 is 89, and DirectX 9 is 174. Passmark G2D records 892. The spread between the lowest and highest scores in these tests reflects the different workloads each benchmark stresses, from raw compute to graphics API-specific paths.

Since the NVIDIA N1X 40SM has zero benchmark scores, its average benchmark score is 0, and its percentile rank sits at 50. That percentile is derived from the database's distribution of all GPUs, but with no measured performance data, it cannot be compared to the RX 7800M on any specific test. The database shows no wins for either part in head-to-head testing, so no direct victory can be assigned.

The Verdict

The data indicates that the AMD Radeon RX 7800M is a fully measured, actively produced mobile GPU with a substantial set of benchmark results. Its average score of 27,883 and 73rd percentile rank show it performs competitively against several older high-end cards, with deltas under one percent against its four nearest rivals. The NVIDIA N1X 40SM, by contrast, has no benchmark results in the database, making any performance-based selection impossible from recorded measurements.

For a user relying strictly on the database, the RX 7800M is the only part with verified performance data. The N1X 40SM cannot be assessed on speed, efficiency, or real-world application behavior because no scores exist. The RX 7800M's nearest rival comparisons show it is not a class leader; it trades places with the Radeon Pro W5500X, GTX 980 Ti, and FirePro S7150 within a narrow range. That means the RX 7800M delivers roughly mid-pack performance among the broader GPU population, not top-tier output.

The N1X 40SM does have a higher percentile rank than its zero-score average might suggest, but that percentile is not backed by any test data. It is a placeholder value, not a measured result. Therefore, the only defensible verdict from the database is that the RX 7800M is the part with demonstrated capability, while the N1X 40SM remains unquantified.

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 (RX 7000M series). The NVIDIA N1X 40SM uses the GB20B chip built on Blackwell 2.0 architecture, with no codename recorded, and belongs to the Blackwell IGP (N1x) generation.

The process nodes differ: the RX 7800M is fabricated on a 5 nm TSMC process, and the N1X 40SM is also on a 5 nm TSMC process. Both use the same foundry and node, so any architectural differences do not stem from lithography. The RX 7800M has 28,100 million transistors on a 346 mm² die, giving a transistor density of 81.2 million per square millimeter. The N1X 40SM has an unknown transistor count but a larger die at 382 mm², with no density figure recorded.

The RX 7800M integrates 3,840 shading units, 240 texture mapping units, 96 raster operations units, and 60 ray tracing cores. It has no tensor cores listed. The N1X 40SM integrates 5,120 shading units, 320 texture mapping units, 40 raster operations units, 40 ray tracing cores, and 160 tensor cores. The N1X 40SM therefore has 1,280 more shading units, 80 more TMUs, but 56 fewer ROPs and 20 fewer ray tracing cores. The RX 7800M has no tensor cores, while the N1X 40SM has a substantial tensor core count, reflecting its Blackwell architecture with dedicated AI processing hardware.

The RX 7800M supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The N1X 40SM lists DirectX as N/A, OpenGL as N/A, and Vulkan as N/A, meaning the database records no API support for that part. Memory architecture also differs: the RX 7800M uses 12 GB of GDDR6 on a 192-bit bus, while the N1X 40SM uses 128 GB of LPDDR5X on a 256-bit bus. The memory type and capacity are fundamentally different, with the N1X 40SM offering far more capacity but a different bandwidth profile.

Specification Differences

The two parts differ across nearly every recorded specification field except for slot width, power connectors, and production status. Both are listed as IGP slot width, both have no power connectors, and both are marked as Active production.

Clock speeds differ substantially. The RX 7800M has a base clock of 1,295 MHz, a boost clock of 2,335 MHz, and a game clock of 2,145 MHz. Its memory clock is 2,250 MHz with 18 Gbps effective data rate. The N1X 40SM has a base clock of 741 MHz, a boost clock of 2,346 MHz, and no game clock recorded. Its memory clock is 1,067 MHz with 8.5 Gbps effective. The RX 7800M runs a higher base clock by 554 MHz, while the boost clocks are nearly identical, with the N1X 40SM just 11 MHz ahead.

Memory bandwidth differs. The RX 7800M delivers 432.0 GB/s from its 192-bit GDDR6 interface. The N1X 40SM delivers 273.2 GB/s from its 256-bit LPDDR5X interface, which is 158.8 GB/s lower despite the wider bus, due to the slower memory clock and type.

Pixel and texture rates differ. The RX 7800M achieves 224.2 GPixel/s and 560.4 GTexel/s. The N1X 40SM achieves 93.84 GPixel/s and 750.7 GTexel/s. The RX 7800M has a much higher pixel fill rate, while the N1X 40SM has a higher texture fill rate.

Compute throughput diverges. The RX 7800M delivers 35.87 TFLOPS FP32 and 35.87 TFLOPS FP16 (1:1). The N1X 40SM delivers 24.02 TFLOPS FP32 and 24.02 TFLOPS FP16 (1:1). The RX 7800M is 11.85 TFLOPS ahead on both FP32 and FP16.

Power and connectivity differ. The RX 7800M has a TDP of 180 W; the N1X 40SM has an unknown TDP. The RX 7800M uses PCIe 4.0 x16, while the N1X 40SM uses PCIe 5.0 x16. Display outputs differ: the RX 7800M lists "Portable Device Dependent", while the N1X 40SM lists "1x HDMI".

Release dates differ. The RX 7800M was released on 2024-09-10. The N1X 40SM has a release date of 2026-05-31. The RX 7800M has a predecessor listed as Polaris Mobile, while the N1X 40SM has no predecessor or successor. The RX 7800M has no launch MSRP recorded, and the N1X 40SM also has no launch MSRP.

FAQ

Q: What is the average benchmark score of the AMD Radeon RX 7800M?

A: The RX 7800M has an average benchmark score of 27,883 across its recorded tests.

Q: Does the NVIDIA N1X 40SM have any benchmark results in the database?

A: No. The N1X 40SM has an empty benchmark array, an average score of 0, and no nearest rivals listed.

Q: How does the RX 7800M compare to its nearest rival, the Radeon Pro Vega 20?

A: The RX 7800M scores 27,883 versus the Radeon Pro Vega 20's 27,839, a delta of 0.2 percent, meaning the RX 7800M is nearly identical in average performance.

Q: Which part has more shading units?

A: The NVIDIA N1X 40SM has 5,120 shading units, while the AMD Radeon RX 7800M has 3,840 shading units.

Q: What is the memory capacity difference between the two parts?

A: The RX 7800M has 12 GB of GDDR6, while the N1X 40SM has 128 GB of LPDDR5X.

Q: Which part has a higher FP32 compute throughput?

A: The RX 7800M delivers 35.87 TFLOPS FP32, while the N1X 40SM delivers 24.02 TFLOPS FP32, a difference of 11.85 TFLOPS in favor of the RX 7800M.