AMD Radeon 8040S vs NVIDIA Rubin GPU Comparison

Head-to-Head Benchmarks

The benchmark comparison between these two parts is unusually lopsided, but not in the direction raw specifications might suggest. The AMD Radeon 8040S has recorded benchmark scores across seven PassMark tests, while the NVIDIA Rubin GPU has no recorded benchmarks in the database at all. This is not a case of one part being faster; it is a case of one part having measurable results and the other having none.

The AMD Radeon 8040S shows its strongest results in PassMark G3D with a score of 10578, and PassMark G2D with 1052. Its compute score is 5138. The DirectX results are lower, with DirectX 9 at 134, DirectX 11 at 80, DirectX 10 at 48, and DirectX 12 at 47. The average benchmark score for the AMD part is 2440.

The NVIDIA Rubin GPU has no benchmark entries. Its average benchmark score is recorded as 0, and its nearest rivals list is empty. The database shows its percentile ranking as 50, but this is not supported by any actual test data. The AMD part sits at the 17th percentile among all GPUs, which places it in the lower tier of recorded hardware.

What this means in practice: the AMD Radeon 8040S can be compared directly to its nearest rivals. It is 0.3% ahead of the NVIDIA GeForce 710M, 0.6% ahead of the Intel HD Graphics 610, and 0.7% ahead of the NVIDIA GeForce GT 710M. It trails the AMD Radeon RX 7400 by 1.1%. These are marginal differences, all within a narrow band around the 2400-2470 score range.

The NVIDIA Rubin GPU cannot be measured against anything in the database because it has no scores. Any claim about its relative performance would be speculation, and the data does not support such claims. The only honest statement is that benchmark results for this part are absent.

Architecture Differences

The two GPUs are built on completely different architectural foundations, and the gap between them is enormous.

The AMD Radeon 8040S uses the RDNA 3.5 architecture, built on a 4 nm process at TSMC. Its chip is called Strix Halo, and it belongs to the Navi Mobile (RX 8000M) generation. The die size is 308 mm², and the transistor count is listed as unknown. It is an integrated graphics processor, using system shared memory for both its frame buffer and its memory bus. The memory type is system shared, the bus width is system shared, and the bandwidth is system dependent. The base clock is 1295 MHz, the boost clock is 2800 MHz, and memory clock is system shared.

The NVIDIA Rubin GPU uses the Rubin architecture, built on a 3 nm process, also at TSMC. Its chip is GR100, and it belongs to the Server Rubin (Rxx) generation. The die size is 1456 mm², which is roughly 4.7 times larger than the AMD part. The transistor count is 336,000 million, and the transistor density is 230.8 million per mm². The base clock is 700 MHz, the boost clock is 2267 MHz, and the memory clock is 2695 MHz with 10.8 Gbps effective data rate. The memory configuration is 288 GB of HBM4 on a 16384-bit bus, delivering 22.1 TB/s of bandwidth.

The AMD part has 1024 shading units, 64 texture mapping units, and 32 ROPs. It includes 16 ray tracing cores and has no tensor cores listed. The NVIDIA part has 28672 shading units, 896 texture mapping units, and only 24 ROPs. It has 896 tensor cores, and its ray tracing core count is not listed. The NVIDIA part has 28 times more shading units, 14 times more texture units, but fewer ROPs.

The AMD part is an integrated processor with no dedicated power connectors, a 55 W TDP, and a slot width of IGP. The NVIDIA part is an SXM module with a 2300 W TDP and a suggested PSU of 2700 W. The AMD part uses PCIe 5.0 x16, while the NVIDIA part uses PCIe 6.0 x16. The AMD part supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4. The NVIDIA part has no API support listed for DirectX, OpenGL, or Vulkan, which is consistent with a server-oriented accelerator that has no display outputs.

Where Each One Wins

The AMD Radeon 8040S wins in every category where there is recorded data, simply because the NVIDIA Rubin GPU has no benchmark scores. The AMD part has measurable results in seven tests. The NVIDIA part has zero.

For the AMD part, the strongest recorded result is in PassMark G3D at 10578, which indicates general 3D rendering workload performance. The PassMark GPU Compute score of 5138 shows it can handle compute tasks, though not at a level that would challenge dedicated server accelerators. The G2D score of 1052 is modest, and the DirectX scores are low, with DirectX 9 being the highest at 134.

The NVIDIA Rubin GPU does not have recorded wins in any test. Its architecture suggests it is designed for server workloads, given the 288 GB of HBM4 memory, the 22.1 TB/s bandwidth, the 2300 W TDP, and the SXM module form factor. But the database contains no measurements to confirm or deny its performance characteristics. The only factual statement is that no benchmark data exists for this part.

For use-case analysis, the AMD Radeon 8040S is an integrated graphics solution for mobile systems, designed to share system memory and operate within a 55 W power envelope. Its DirectX support and display outputs (portable device dependent) indicate it is intended for consumer laptops or handheld devices. The NVIDIA Rubin GPU is a server module with no display outputs, suggesting it is meant for datacenter compute tasks. But without benchmark data, any performance-based recommendation would be unsupported.

FAQ

Q: Which GPU has a higher average benchmark score?

A: The AMD Radeon 8040S has an average benchmark score of 2440. The NVIDIA Rubin GPU has an average benchmark score of 0, because no benchmarks are recorded for it.

Q: How does the AMD Radeon 8040S compare to its nearest rivals?

A: It is 0.3% ahead of the NVIDIA GeForce 710M, 0.6% ahead of the Intel HD Graphics 610, and 0.7% ahead of the NVIDIA GeForce GT 710M. It is 1.1% behind the AMD Radeon RX 7400.

Q: What is the memory configuration of the NVIDIA Rubin GPU?

A: The NVIDIA Rubin GPU has 288 GB of HBM4 memory on a 16384-bit bus, with a bandwidth of 22.1 TB/s and a memory clock of 2695 MHz (10.8 Gbps effective).

Q: What is the memory configuration of the AMD Radeon 8040S?

A: The AMD Radeon 8040S uses system shared memory. The memory size, type, and bus width are all listed as system shared, and the bandwidth is system dependent.

Q: Does the NVIDIA Rubin GPU support DirectX?

A: The database lists DirectX support as N/A for the NVIDIA Rubin GPU. It also lists OpenGL and Vulkan as N/A. The AMD Radeon 8040S supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4.

Q: What are the power requirements for each GPU?

A: The AMD Radeon 8040S has a TDP of 55 W and requires no power connectors. The NVIDIA Rubin GPU has a TDP of 2300 W and a suggested PSU of 2700 W.

The Verdict

The data presents a clear but unusual picture. The AMD Radeon 8040S has recorded benchmark results and can be compared to its peer group. Its scores place it at the 17th percentile among all GPUs, with its nearest rivals being low-end mobile and integrated parts. The differences between the AMD part and its nearest rivals are small, all within 1.1%, which indicates it performs in the same class as those parts.

The NVIDIA Rubin GPU has no benchmark results. Its percentile ranking of 50 is recorded, but with zero average score and no rivals, that ranking carries no evidentiary weight. The database cannot confirm any performance claim for this part.

For a buyer or builder looking at the AMD Radeon 8040S, the data shows a part that sits among the lowest-performing GPUs in the database. Its DirectX 12 score of 47 and DirectX 11 score of 80 are low, and its G3D score of 10578 is its best result. It is an integrated part with a 55 W TDP, no power connectors, and system shared memory, which makes it suitable for lightweight mobile use.

For the NVIDIA Rubin GPU, the data shows a server accelerator with a massive memory footprint, enormous bandwidth, and a 2300 W power draw. But without benchmarks, there is no measurable performance to analyze. The specifications indicate a high-end server part, but the database contains no test results to confirm its standing.

The verdict based strictly on recorded data: the AMD Radeon 8040S is a measurable, low-tier integrated GPU. The NVIDIA Rubin GPU is an unmeasured server part with no benchmark presence. Any decision between the two would have to consider that one has data and the other does not.

Specification Differences

| Specification | AMD Radeon 8040S | NVIDIA Rubin GPU |

|---|---|---|

| Architecture | RDNA 3.5 | Rubin |

| Process Node | 4 nm | 3 nm |

| Foundry | TSMC | TSMC |

| Die Size | 308 mm² | 1456 mm² |

| Transistors | unknown | 336,000 million |

| Transistor Density | not listed | 230.8M / mm² |

| Base Clock | 1295 MHz | 700 MHz |

| Boost Clock | 2800 MHz | 2267 MHz |

| Memory Size | System Shared | 288 GB |

| Memory Type | System Shared | HBM4 |

| Memory Bus Width | System Shared | 16384 bit |

| Memory Bandwidth | System Dependent | 22.1 TB/s |

| Memory Clock | System Shared | 2695 MHz (10.8 Gbps effective) |

| Shading Units | 1024 | 28672 |

| TMUs | 64 | 896 |

| ROPs | 32 | 24 |

| RT Cores | 16 | not listed |

| Tensor Cores | not listed | 896 |

| Pixel Rate | 89.60 GPixel/s | 54.41 GPixel/s |

| Texture Rate | 179.2 GTexel/s | 2,031.2 GTexel/s |

| FP32 | 5.734 TFLOPS | 130.0 TFLOPS |

| FP16 | 5.734 TFLOPS (1:1) | 260.0 TFLOPS (2:1) |

| TDP | 55 W | 2300 W |

| Slot Width | IGP | SXM Module |

| Power Connectors | None | not listed |

| Suggested PSU | not listed | 2700 W |

| Bus Interface | PCIe 5.0 x16 | PCIe 6.0 x16 |

| Display Outputs | Portable Device Dependent | No outputs |

| DirectX | 12 Ultimate (12_2) | N/A |

| OpenGL | 4.6 | N/A |

| Vulkan | 1.4 | N/A |

| Release Date | 2025-01-05 | 2025-12-31 |

| Production Status | Active | Active |

| Predecessor | Polaris Mobile | Server Blackwell |