AMD Instinct MI300A vs AMD Radeon 8040S Comparison

Head-to-Head Benchmarks

The database contains no direct head-to-head benchmark comparisons between the AMD Instinct MI300A and the AMD Radeon 8040S. The MI300A has no recorded benchmark scores in the database, while the Radeon 8040S has seven Passmark results. The MI300A's average benchmark score is 0, and its percentile rank against all GPUs is 50. The Radeon 8040S holds a percentile rank of 17 and an average benchmark score of 2440.

The Radeon 8040S delivers its strongest Passmark result in the G3D test with a score of 10578. Its G2D score reaches 1052, while the GPU compute test returns 5138. Legacy DirectX tests show 134 in DirectX 9, 80 in DirectX 11, 48 in DirectX 10, and 47 in DirectX 12. These scores place the 8040S just above a cluster of older mobile and entry-level parts. The nearest rival, the NVIDIA GeForce 710M, averages 2433, which is 0.3 percent behind. The Intel HD Graphics 610 sits 0.6 percent behind at 2425, and the NVIDIA GeForce GT 710M trails by 0.7 percent at 2422. On the other side, the AMD Radeon RX 7400 leads the 8040S by 1.1 percent with an average score of 2467.

The absence of MI300A benchmark records means the data cannot produce a comparative score delta. The MI300A is a compute-oriented accelerator with no display outputs, no graphics API support, and a pixel rate of 0 MPixel/s. The Radeon 8040S is an integrated graphics processor with full API support including DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4. The 8040S delivers a pixel rate of 89.60 GPixel/s and a texture rate of 179.2 GTexel/s. The MI300A, by contrast, reaches a texture rate of 1,915.2 GTexel/s, roughly 10.7 times higher than the 8040S's figure. The MI300A's FP32 throughput is 61.29 TFLOPS compared to 5.734 TFLOPS for the 8040S, a ratio of approximately 10.7 to 1. The 8040S matches its FP32 throughput in FP16 at 5.734 TFLOPS (1:1), while the MI300A's FP16 figure is not recorded.

Where Each One Wins

The data splits the two parts into entirely separate usage domains. The MI300A wins outright in raw compute capacity. Its FP32 throughput of 61.29 TFLOPS and texture rate of 1,915.2 GTexel/s position it as a high-density accelerator. It carries 128 GB of HBM3 memory on an 8192-bit bus, delivering 5.32 TB/s of bandwidth. Its memory clock runs at 1300 MHz with 5.2 Gbps effective data rate. The 8040S uses system shared memory, meaning its bandwidth is system dependent. The MI300A also has a much larger silicon footprint at 1017 mm² with 153,000 million transistors, built on a 5 nm process at TSMC. The 8040S uses a 4 nm process with a 308 mm² die and an unrecorded transistor count.

The Radeon 8040S wins in graphics-specific workloads. It supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4, and includes 16 ray tracing cores. Its pixel rate of 89.60 GPixel/s indicates functional rasterization hardware, while the MI300A records 0 MPixel/s. The 8040S has 32 ROPs and 64 TMUs, compared to 0 ROPs and 912 TMUs for the MI300A. The 8040S runs at a base clock of 1295 MHz and a boost clock of 2800 MHz, both higher than the MI300A's 1000 MHz base and 2100 MHz boost. The 8040S also has a much lower TDP of 55 W versus 750 W for the MI300A, and its slot width is IGP rather than the MI300A's OAM Module. The 8040S is classified as Active in production status, while the MI300A's production status is not recorded.

The 8040S's Passmark results show a compute score of 5138, which is roughly half of its G3D score of 10578. The G2D score of 1052 is low relative to the G3D result. These scores indicate that the 8040S performs better in 3D rendering tasks than in general-purpose compute or 2D operations. The MI300A has no such benchmark breakdown in the database.

The Verdict

The recorded data supports a clear separation. The AMD Instinct MI300A is designed for accelerator workloads where FP32 throughput, memory bandwidth, and texture processing dominate. Its 61.29 TFLOPS FP32 figure and 5.32 TB/s memory bandwidth are the defining metrics. The AMD Radeon 8040S is an integrated graphics solution aimed at rendering and display workloads, with API support and ray tracing hardware that the MI300A lacks entirely. The 8040S's Passmark G3D score of 10578 and DirectX 9 score of 134 confirm functional graphics capability, though its percentile rank of 17 places it below most recorded GPUs.

The MI300A's percentile rank of 50 with zero benchmark scores is an artifact of missing data, not a performance statement. Its 750 W TDP and OAM Module form factor indicate a server or datacenter context. The 8040S's 55 W TDP and IGP form factor indicate a mobile or portable device context. The MI300A has no display outputs; the 8040S's display outputs are portable device dependent. The MI300A's predecessor is Radeon Instinct, while the 8040S's predecessor is Polaris Mobile. The MI300A was released on 2023-12-05, and the 8040S on 2025-01-05. Neither part has a recorded launch MSRP.

FAQ

Q: Which GPU has higher FP32 compute performance?

A: The AMD Instinct MI300A delivers 61.29 TFLOPS, while the AMD Radeon 8040S delivers 5.734 TFLOPS.

Q: Does the Radeon 8040S support ray tracing?

A: Yes, the 8040S includes 16 ray tracing cores. The MI300A has no recorded ray tracing core count.

Q: What memory configuration does the MI300A use?

A: The MI300A uses 128 GB of HBM3 memory on an 8192-bit bus with 5.32 TB/s bandwidth.

Q: How does the Radeon 8040S compare to its nearest rivals in average benchmark score?

A: The 8040S averages 2440, which is 0.3 percent ahead of the NVIDIA GeForce 710M, 0.6 percent ahead of the Intel HD Graphics 610, 0.7 percent ahead of the NVIDIA GeForce GT 710M, and 1.1 percent behind the AMD Radeon RX 7400.

Q: What graphics APIs does the MI300A support?

A: The MI300A has no graphics API support. DirectX, OpenGL, and Vulkan are all listed as N/A.

Q: What is the power draw difference between the two parts?

A: The MI300A has a TDP of 750 W, while the Radeon 8040S has a TDP of 55 W.

Architecture Differences

The MI300A uses the Aqua Vanjaram chip with CDNA 3.0 architecture, part of the Instinct (MIx) generation. The Radeon 8040S uses the Strix Halo chip with RDNA 3.5 architecture, part of the Navi Mobile (RX 8000M) generation. The MI300A is built on a 5 nm process at TSMC with 153,000 million transistors on a 1017 mm² die, yielding a transistor density of 150.4M per mm². The 8040S uses a 4 nm process at TSMC with a 308 mm² die and an unknown transistor count. The MI300A has 14592 shading units, 912 TMUs, and 0 ROPs. The 8040S has 1024 shading units, 64 TMUs, and 32 ROPs. The 8040S includes 16 ray tracing cores; the MI300A has no recorded RT core count. Neither part lists tensor cores.

The MI300A's cache hierarchy is not recorded. The 8040S's cache details are also not recorded. The MI300A's memory system is discrete HBM3, while the 8040S relies on system shared memory. The MI300A has no display outputs, and the 8040S's display outputs are portable device dependent. The MI300A has no graphics API support, while the 8040S supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4. The MI300A's slot width is OAM Module with no power connectors and a suggested PSU of 1150 W. The 8040S is an IGP with no power connectors and no suggested PSU. Both use PCIe 5.0 x16 as their bus interface.

Specification Differences

The MI300A and Radeon 8040S differ in process node: 5 nm versus 4 nm. The MI300A's die size is 1017 mm² versus 308 mm² for the 8040S. The MI300A has 153,000 million transistors; the 8040S's transistor count is unknown. Base clocks are 1000 MHz for the MI300A and 1295 MHz for the 8040S. Boost clocks are 2100 MHz and 2800 MHz respectively. The MI300A's memory clock is 1300 MHz with 5.2 Gbps effective; the 8040S uses system shared memory. Memory size, type, and bus width are 128 GB HBM3 on an 8192-bit bus for the MI300A, versus system shared for the 8040S. Bandwidth is 5.32 TB/s for the MI300A and system dependent for the 8040S.

Shading units number 14592 for the MI300A and 1024 for the 8040S. TMUs are 912 versus 64. ROPs are 0 versus 32. Pixel rate is 0 MPixel/s versus 89.60 GPixel/s. Texture rate is 1,915.2 GTexel/s versus 179.2 GTexel/s. FP32 is 61.29 TFLOPS versus 5.734 TFLOPS. The 8040S records FP16 at 5.734 TFLOPS (1:1); the MI300A's FP16 is not recorded. TDP is 750 W versus 55 W. Slot width is OAM Module versus IGP. The MI300A has no display outputs; the 8040S's are portable device dependent. The 8040S supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4; the MI300A supports none. The MI300A's suggested PSU is 1150 W; the 8040S has none. The MI300A was released on 2023-12-05, the 8040S on 2025-01-05. The MI300A's predecessor is Radeon Instinct; the 8040S's predecessor is Polaris Mobile. The 8040S has an active production status; the MI300A's production status is not recorded.