AMD Radeon 8040S vs NVIDIA GeForce RTX 5070 Mobile Comparison

Head-to-Head Benchmarks

The head-to-head data records seven shared tests, and the NVIDIA GeForce RTX 5070 Mobile takes six of them. The most lopsided result is in Passmark DirectX 10, where the RTX 5070 Mobile scores 129 against the AMD Radeon 8040S's 48, a delta of -62.8% from the AMD part's perspective. DirectX 11 shows a similar pattern: 192 versus 80, a -58.3% gap. The NVIDIA part also wins DirectX 12 by a wide margin, 93 to 47, which is -49.5%. Even the legacy DirectX 9 test favors NVIDIA, 214 to 134, though the gap narrows to -37.4%.

The 3D graphics aggregate, Passmark G3D, delivers the most decisive separation. The RTX 5070 Mobile records 20,355, while the Radeon 8040S manages 10,578, a -48% difference. That is nearly double the raw score. Compute workloads follow the same direction: Passmark GPU Compute shows 8,279 for NVIDIA versus 5,138 for AMD, a -37.9% gap. The only AMD victory comes in Passmark G2D, the 2D graphics test, where the Radeon 8040S posts 1,052 against 896, a +17.4% advantage.

Looking at the broader average benchmark score, the database lists 29,928 for the RTX 5070 Mobile versus 2,440 for the Radeon 8040S. That average includes different test sets for each part, so it is not a direct head-to-head comparison, but it does place the NVIDIA part in a different performance tier. The percentile data reinforces this: the RTX 5070 Mobile sits at the 75th percentile of all GPUs, while the Radeon 8040S sits at the 17th percentile. The nearest rivals for the NVIDIA part are the RTX 3070 Ti (-0.1%), RTX 2080 Ti (+0.5%), RX 6800 (-0.6%), and RX 6700 (-1.7%). The AMD part's nearest rivals, by contrast, are the GeForce 710M (+0.3%), Intel HD Graphics 610 (+0.6%), GeForce GT 710M (+0.7%), and Radeon RX 7400 (-1.1%). The Radeon 8040S is effectively competing with decade-old integrated and entry-level discrete parts, while the RTX 5070 Mobile is trading blows with high-end desktop cards from previous generations.

The Verdict

The data points to a clear segmentation. The RTX 5070 Mobile is the stronger GPU for any workload that stresses 3D rendering, compute, or modern DirectX APIs. Its Passmark G3D score of 20,355 is roughly double the Radeon 8040S's 10,578, and its compute score of 8,279 beats 5,138 by a substantial margin. For gaming, ray tracing, or GPU-accelerated productivity, the NVIDIA part is the obvious choice based on these measurements.

The Radeon 8040S wins only the 2D test, with 1,052 versus 896, and even that win is modest at +17.4%. Its DirectX scores are uniformly lower across all four API versions tested. The percentile gap, 17th versus 75th, summarizes the situation: the Radeon 8040S is positioned near the bottom of the database's GPU ranking, while the RTX 5070 Mobile is near the top quarter. Pick the Radeon 8040S only if 2D desktop performance is the primary concern and 3D capability is secondary. For everything else, the recorded benchmarks favor NVIDIA.

Architecture Differences

The two GPUs come from different architectural generations. The AMD Radeon 8040S uses RDNA 3.5, built on a 4 nm process at TSMC, with a die size of 308 mm². The NVIDIA GeForce RTX 5070 Mobile uses Blackwell 2.0, built on a 5 nm process at TSMC, with a die size of 181 mm². The transistor count for the AMD part is listed as unknown, while the NVIDIA part carries 21,900 million transistors, giving it a transistor density of 121.0 million per mm².

The compute resources differ sharply. The Radeon 8040S has 1,024 shading units, 64 texture mapping units, and 32 raster output units. The RTX 5070 Mobile has 4,608 shading units, 144 TMUs, and 48 ROPs. Ray tracing hardware also diverges: the AMD part has 16 RT cores, the NVIDIA part has 36. Tensor cores are present only on the NVIDIA side, with 144 of them. The AMD part has no tensor core listing.

Rates reflect these differences. The AMD part's pixel rate is 89.60 GPixel/s, which is higher than the NVIDIA part's 68.40 GPixel/s, despite the NVIDIA part having more ROPs. The texture rate favors NVIDIA, 205.2 GTexel/s versus 179.2 GTexel/s. FP32 throughput is 13.13 TFLOPS for NVIDIA versus 5.734 TFLOPS for AMD, and FP16 follows the same ratio at 13.13 TFLOPS versus 5.734 TFLOPS, with both listed as 1:1.

Memory architecture is fundamentally different. The Radeon 8040S uses system shared memory, with the bus width, type, and bandwidth all listed as system dependent. The RTX 5070 Mobile has 8 GB of dedicated GDDR7 memory on a 128-bit bus, with 384.0 GB/s of bandwidth. Clock behavior also differs. The AMD part's base clock is 1,295 MHz with a boost of 2,800 MHz. The NVIDIA part's base clock is 907 MHz with a boost of 1,425 MHz. The NVIDIA part's memory clock is listed as 1,500 MHz with 24 Gbps effective.

Specification Differences

The two parts diverge on several specification fields. The AMD Radeon 8040S is from the Navi Mobile (RX 8000M) generation, while the NVIDIA part is from the GeForce 50 Mobile generation. The AMD chip is Strix Halo; the NVIDIA chip is GB206. Power targets are close but not identical: the Radeon 8040S has a TDP of 55 W, the RTX 5070 Mobile has a TDP of 50 W. Both are listed as IGP slot width with no power connectors, and both use PCIe 5.0 x16.

Release dates differ by months. The AMD part launched on 2025-01-05, the NVIDIA part on 2025-04-14. The AMD part's predecessor is Polaris Mobile, while the NVIDIA part's predecessor is GeForce 40 Mobile. Neither has a successor listed, and neither has a launch MSRP in the database.

Display outputs are portable device dependent for both. API support is identical: DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The production status for both is Active. The die size difference is notable: 308 mm² for AMD versus 181 mm² for NVIDIA, which means the AMD part uses more silicon area despite having fewer shading units and lower peak clocks.

FAQ

Q: Which GPU has the higher Passmark G3D score?

A: The NVIDIA GeForce RTX 5070 Mobile, with 20,355 versus the AMD Radeon 8040S's 10,578, a -48% difference in favor of NVIDIA.

Q: Does the AMD Radeon 8040S win any head-to-head benchmark?

A: Yes, the Passmark G2D test. The AMD part scores 1,052 against the NVIDIA part's 896, a +17.4% advantage.

Q: What is the memory configuration of each GPU?

A: The Radeon 8040S uses system shared memory with system dependent bandwidth. The RTX 5070 Mobile has 8 GB of GDDR7 on a 128-bit bus with 384.0 GB/s bandwidth.

Q: How do the ray tracing cores compare?

A: The RTX 5070 Mobile has 36 RT cores, while the Radeon 8040S has 16 RT cores.

Q: What is the percentile ranking for each GPU?

A: The Radeon 8040S sits at the 17th percentile of all GPUs. The RTX 5070 Mobile sits at the 75th percentile.

Q: Which GPU has the higher boost clock?

A: The Radeon 8040S, with a boost of 2,800 MHz versus the RTX 5070 Mobile's 1,425 MHz.

Where Each One Wins

The RTX 5070 Mobile dominates every 3D and compute workload in the shared test set. DirectX 10, 11, and 12 all show NVIDIA ahead by margins from -49.5% to -62.8%. DirectX 9 is closer but still NVIDIA's, at -37.4%. The G3D aggregate confirms this pattern, with the NVIDIA part nearly doubling the AMD score. Compute work, represented by Passmark GPU Compute, also favors NVIDIA by -37.9%. For gaming, rendering, or any GPU compute task, the RTX 5070 Mobile is the stronger part according to the recorded data.

The Radeon 8040S wins exactly one test: Passmark G2D. That test measures 2D graphics operations, and the AMD part's 1,052 score beats the NVIDIA part's 896 by 17.4%. The AMD part also has a higher boost clock, 2,800 MHz versus 1,425 MHz, and a higher pixel rate, 89.60 GPixel/s versus 68.40 GPixel/s, though the pixel rate advantage does not translate into a G3D win. The AMD part's lower FP32 throughput, 5.734 TFLOPS versus 13.13 TFLOPS, and its reliance on system shared memory instead of dedicated GDDR7, put it at a structural disadvantage for 3D workloads. The database's nearest rival comparison for the Radeon 8040S, which includes the GeForce 710M and Intel HD Graphics 610, indicates that its performance tier is far below the RTX 5070 Mobile's tier, which includes the RTX 3070 Ti and RTX 2080 Ti.