AMD Instinct MI350P vs AMD Radeon 8040S Comparison

The Verdict

The AMD Instinct MI350P and AMD Radeon 8040S occupy opposite ends of the AMD product spectrum, and the recorded data confirms they serve entirely different purposes. The MI350P is a 600 W accelerator designed for compute workloads with no display outputs, while the 8040S is a 55 W integrated graphics processor (IGP) for portable devices with full API support including DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4.

The MI350P holds the performance advantage by a massive margin. Its FP32 throughput of 36.04 TFLOPS is 6.3 times higher than the 8040S's 5.734 TFLOPS. The texture rate of 1,126.4 GTexel/s versus 179.2 GTexel/s represents a similar gap. The 8040S does have one clear advantage: it is an Active production product released in January 2025, whereas the MI350P has a release date of May 2026 and no production status recorded. For anyone needing a GPU today, the 8040S exists. For anyone needing maximum compute throughput, the MI350P is the clear choice despite its later arrival.

The benchmark data for the 8040S shows an average score of 2440 across seven PassMark tests, placing it at the 17th percentile of all GPUs. Its nearest rivals, the NVIDIA GeForce 710M at 2433, Intel HD Graphics 610 at 2425, and NVIDIA GeForce GT 710M at 2422, all sit within 0.7% of its score. The AMD Radeon RX 7400 is 1.1% ahead. This places the 8040S in entry-level territory. The MI350P has no benchmark entries and a 50th percentile rating with an average score of 0, meaning no direct performance measurements exist in the database.

Where Each One Wins

The MI350P wins decisively in raw compute capability. Its 8,192 shading units dwarf the 8040S's 1,024. It has 512 texture mapping units versus 64, and its 8,192-bit memory bus with 144 GB of HBM3e delivers 8.19 TB/s of bandwidth. The 8040S uses System Shared memory with bandwidth described as System Dependent, so it cannot match dedicated high-bandwidth memory.

The 8040S wins in practical usability for general computing. It supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4, making it usable for gaming and standard graphics applications. The MI350P has no API support recorded for DirectX, OpenGL, or Vulkan. It has no display outputs, confirming it is a compute-only accelerator. The 8040S also wins on power efficiency: 5.734 TFLOPS at 55 W versus 36.04 TFLOPS at 600 W. Computing efficiency, the 8040S delivers 0.104 TFLOPS per watt, while the MI350P delivers 0.060 TFLOPS per watt. The 8040S is 73% more efficient in this metric.

The 8040S includes 16 ray tracing cores, useful for ray-traced workloads, while the MI350P has no ray tracing cores listed. The 8040S also has a pixel rate of 89.60 GPixel/s, while the MI350P has 0 MPixel/s. For any display output, the 8040S is the only functional option.

Architecture Differences

The MI350P uses CDNA 4.0 architecture on a 3 nm process at TSMC, while the 8040S uses RDNA 3.5 architecture on a 4 nm process, also at TSMC. The MI350P's chip, labeled MI350 128CU, contains 73,000 million transistors on a 1190 mm² die, giving a transistor density of 61.3M per mm². The 8040S's Strix Halo chip has a 308 mm² die with an unknown transistor count.

The memory subsystems differ completely. The MI350P uses 144 GB of HBM3e on an 8192-bit bus with 8.19 TB/s bandwidth. The 8040S uses System Shared memory with a System Shared bus width and System Dependent bandwidth. The MI350P has a base clock of 1000 MHz and boost clock of 2200 MHz, with memory running at 2000 MHz (8 Gbps effective). The 8040S has a higher base clock of 1295 MHz and boost clock of 2800 MHz, but no dedicated memory clock since it shares system memory.

The MI350P has zero ROPs and pixel rate of 0 MPixel/s, confirming it has no rasterization hardware. The 8040S has 32 ROPs. The MI350P has no display outputs, while the 8040S's outputs are Portable Device Dependent. The MI350P is a dual-slot card requiring a 1x 16-pin power connector and a 1000 W suggested PSU, measuring 267 mm long, 111 mm high, and 40 mm wide. The 8040S is an IGP with no power connectors, no dimensions recorded, and no suggested PSU.

The MI350P belongs to the Instinct (MIx) generation with a predecessor of Radeon Instinct. The 8040S belongs to the Navi Mobile (RX 8000M) generation with a predecessor of Polaris Mobile. Both use PCIe 5.0 x16 interfaces.

FAQ

Q: Which GPU has higher raw compute performance?

A: The MI350P delivers 36.04 TFLOPS FP32 versus 5.734 TFLOPS for the 8040S, a 6.3 times advantage. Its texture rate of 1,126.4 GTexel/s is also 6.3 times higher than the 8040S's 179.2 GTexel/s.

Q: Can the MI350P be used for gaming?

A: No. The MI350P has no display outputs, no DirectX support, no OpenGL support, no Vulkan support, and 0 MPixel/s pixel rate. It has no rasterization hardware and is compute-only.

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

A: The 8040S averages 2440 in PassMark tests, 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. The AMD Radeon RX 7400 is 1.1% ahead.

Q: What memory configurations do these GPUs use?

A: The MI350P uses 144 GB of HBM3e on an 8192-bit bus with 8.19 TB/s bandwidth. The 8040S uses System Shared memory with System Shared bus width and System Dependent bandwidth.

Q: Which GPU is more power efficient?

A: The 8040S delivers 5.734 TFLOPS at 55 W, resulting in 0.104 TFLOPS per watt. The MI350P delivers 36.04 TFLOPS at 600 W, resulting in 0.060 TFLOPS per watt. The 8040S is 73% more efficient.

Q: When was each GPU released?

A: The 8040S has a release date of January 2025 and is marked Active in production status. The MI350P has a release date of May 2026 with no production status recorded.

Head-to-Head Benchmarks

The database contains no direct head-to-head benchmark comparisons between the MI350P and 8040S. The MI350P has no benchmark entries at all, and its average benchmark score is 0 with a 50th percentile rating. The 8040S has seven PassMark benchmark entries.

The 8040S scores 10,578 in PassMark G3D, 5,138 in GPU Compute, 1,052 in G2D, 134 in DirectX 9, 80 in DirectX 11, 48 in DirectX 10, and 47 in DirectX 12. Its average across all tests is 2,440. These scores place it at the 17th percentile of all GPUs, meaning 83% of recorded GPUs score higher.

The MI350P's compute capabilities, while not directly benchmarked, can be inferred from its specifications. Its 36.04 TFLOPS FP32 throughput and 1,126.4 GTexel/s texture rate suggest performance orders of magnitude above the 8040S. The 8040S's FP32 of 5.734 TFLOPS is 15.9% of the MI350P's figure. The texture rates show a similar relationship: 179.2 GTexel/s is 15.9% of 1,126.4 GTexel/s.

The 8040S does win in pixel throughput with 89.60 GPixel/s versus 0 MPixel/s for the MI350P, but this is expected since the MI350P has no rasterization hardware. The 8040S also includes 16 ray tracing cores, a feature entirely absent from the MI350P.

The 8040S's DirectX 12 score of 47 is its lowest DirectX result, while its DirectX 9 score of 134 is its highest. This pattern suggests the 8040S handles legacy APIs more efficiently than modern ones, possibly due to driver overhead or architectural design. The G2D score of 1,052 is substantially higher than any DirectX score, indicating strong 2D performance relative to 3D.

Specification Differences

The two GPUs differ in nearly every measurable specification.

Process and Die: The MI350P uses a 3 nm process with 73,000 million transistors on a 1190 mm² die at 61.3M transistors per mm². The 8040S uses a 4 nm process with an unknown transistor count on a 308 mm² die.

Clocks: The MI350P has a 1000 MHz base clock and 2200 MHz boost clock, with memory at 2000 MHz (8 Gbps effective). The 8040S has a 1295 MHz base clock and 2800 MHz boost clock, with memory marked System Shared.

Memory: The MI350P has 144 GB HBM3e on an 8192-bit bus with 8.19 TB/s bandwidth. The 8040S has System Shared memory, System Shared bus width, and System Dependent bandwidth.

Compute Units: The MI350P has 8,192 shading units, 512 TMUs, and 0 ROPs. The 8040S has 1,024 shading units, 64 TMUs, and 32 ROPs. The MI350P has no ray tracing cores; the 8040S has 16.

Performance Rates: The MI350P has 0 MPixel/s pixel rate and 1,126.4 GTexel/s texture rate. The 8040S has 89.60 GPixel/s pixel rate and 179.2 GTexel/s texture rate. FP32 and FP16 are both 36.04 TFLOPS (1:1) for the MI350P and 5.734 TFLOPS (1:1) for the 8040S.

Power and Physical: The MI350P has a 600 W TDP, is dual-slot, uses a 1x 16-pin power connector, and suggests a 1000 W PSU. It measures 267 mm by 111 mm by 40 mm. The 8040S has a 55 W TDP, is an IGP, has no power connectors, and no suggested PSU or dimensions.

Interfaces and Outputs: Both use PCIe 5.0 x16. The MI350P has no display outputs. The 8040S has Portable Device Dependent outputs.

API Support: The MI350P has no DirectX, OpenGL, or Vulkan support. The 8040S supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

Release and Status: The MI350P releases May 2026 with no production status. The 8040S released January 2025 and is Active.