AMD Instinct MI308X vs AMD Radeon RX 7600M Comparison

Head-to-Head Benchmarks

The AMD Instinct MI308X and AMD Radeon RX 7600M occupy completely different segments of the GPU market, and the recorded data reflects that divergence clearly. The MI308X is a compute-oriented accelerator with no display outputs, while the RX 7600M is a mobile graphics processor designed for portable devices. Direct benchmark comparisons are limited because the MI308X has no recorded benchmark scores in the database, whereas the RX 7600M has a single Geekbench OpenCL result of 63,775 points.

That single score places the RX 7600M at the 89th percentile among all GPUs tracked by the database. Its nearest rivals in the recorded data are tightly clustered around it. The AMD Radeon RX 9060 XT LP scores 63,830 points, a delta of -0.1 percent relative to the RX 7600M, meaning the RX 7600M is effectively tied with it. The NVIDIA CMP 30HX also scores 63,842 points, another -0.1 percent delta. The AMD Radeon Pro Vega 56 comes in at 63,693 points, a +0.1 percent delta, meaning the RX 7600M is 0.1 percent behind that card. The AMD Radeon Pro WX 9100 leads the group at 64,212 points, a -0.7 percent delta, so the RX 7600M trails it by 0.7 percent.

For the MI308X, the database records an average benchmark score of zero and a percentile of 50, with no nearest rivals listed. The absence of benchmark data means no direct head-to-head score comparisons can be made. The compute throughput figures, however, are illustrative of the performance gulf. The MI308X delivers 81.72 TFLOPS of FP32 compute, while the RX 7600M manages 17.27 TFLOPS. That is a 4.7x difference in raw single-precision floating-point throughput, a gap that explains why the two products target entirely different workloads.

The texture rate also shows a major separation. The MI308X achieves 2,553.6 GTexel/s, compared to 269.9 GTexel/s for the RX 7600M. The pixel rate tells a different story: the MI308X records 0 MPixel/s because it has no ROPs and no display pipeline, while the RX 7600M reaches 154.2 GPixel/s. The MI308X simply does not rasterize, a fundamental architectural distinction rather than a performance deficiency.

Where Each One Wins

The RX 7600M wins in every measured benchmark category because it is the only one with recorded benchmark scores. Its Geekbench OpenCL result of 63,775 points demonstrates a capable mobile compute part, placing it in the 89th percentile overall. The nearest rival data confirms it sits in a competitive band with desktop workstation cards like the Radeon Pro WX 9100 and the Radeon Pro Vega 56, trailing the former by 0.7 percent and the latter by 0.1 percent. The RX 7600M also beats the RX 9060 XT LP and CMP 30HX by 0.1 percent each, though those margins are within noise.

The MI308X wins in raw compute specification territory. Its FP32 throughput of 81.72 TFLOPS dwarfs the RX 7600M's 17.27 TFLOPS. Its FP16 performance is also 81.72 TFLOPS with a 1:1 ratio, whereas the RX 7600M reaches 34.55 TFLOPS FP16 with a 2:1 ratio. The MI308X memory subsystem is in another class entirely: 192 GB of HBM3 on an 8192-bit bus delivers 5.32 TB/s of bandwidth, compared to 8 GB of GDDR6 on a 128-bit bus for 256.0 GB/s. That is a 20.8x bandwidth advantage and a 24x capacity advantage.

The RX 7600M wins on practical mobile deployment. It is an IGP (integrated graphics processor) with a 90 W TDP, while the MI308X is an OAM module with a 750 W TDP and a suggested power supply of 1150 W. The RX 7600M supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, while the MI308X reports N/A for all three APIs. The RX 7600M has 28 ray tracing cores and 64 ROPs, features entirely absent from the MI308X.

Architecture Differences

The two GPUs come from different AMD architectures. The MI308X uses CDNA 3.0 with the Aqua Vanjaram chip, built on a 5 nm TSMC process. The RX 7600M uses RDNA 3.0 with the Navi 33 chip, codenamed Hotpink Bonefish, on a 6 nm TSMC process. The process node difference is modest, but the chip scale difference is enormous. The MI308X integrates 153,000 million transistors on a 1017 mm² die, yielding a transistor density of 150.4 million per mm². The RX 7600M has 13,300 million transistors on a 204 mm² die, for a density of 65.2 million per mm². The MI308X carries 11.5x more transistors on a 5x larger die.

The compute resources reflect this scale gap. The MI308X has 19,456 shading units and 1,216 texture mapping units, while the RX 7600M has 1,792 shading units and 112 TMUs. The RX 7600M includes 64 ROPs and 28 ray tracing cores; the MI308X has zero ROPs and no ray tracing cores, consistent with a compute accelerator that does not render graphics. The MI308X clock speeds are lower: a 1000 MHz base and 2100 MHz boost, versus 1500 MHz base and 2410 MHz boost for the RX 7600M, which also has a 2070 MHz game clock. The RX 7600M compensates for fewer cores with higher clocks, but the core count advantage of the MI308X overwhelms that clock speed difference.

Memory architecture is the clearest differentiator. The MI308X uses 192 GB of HBM3 with an 8192-bit bus and 5.32 TB/s bandwidth, with memory clocked at 1300 MHz for 5.2 Gbps effective. The RX 7600M uses 8 GB of GDDR6 on a 128-bit bus with 256.0 GB/s bandwidth, with memory at 2000 MHz for 16 Gbps effective. The bus width difference alone, 8192 bits versus 128 bits, is a 64x gap. The interface also differs: the MI308X uses PCIe 5.0 x16, while the RX 7600M uses PCIe 4.0 x16.

The MI308X has no display outputs, no power connectors, and uses an OAM module form factor. The RX 7600M has portable-device-dependent display outputs, no power connectors, and is classified as an IGP. The MI308X was released on December 5, 2023, succeeding Radeon Instinct. The RX 7600M was released on January 3, 2023, succeeding Polaris Mobile, and its production status is listed as Active.

FAQ

Q: Which GPU has higher FP32 compute performance?

A: The AMD Instinct MI308X delivers 81.72 TFLOPS of FP32, while the AMD Radeon RX 7600M delivers 17.27 TFLOPS.

Q: How much memory bandwidth does each GPU provide?

A: The MI308X provides 5.32 TB/s through 192 GB of HBM3 on an 8192-bit bus. The RX 7600M provides 256.0 GB/s through 8 GB of GDDR6 on a 128-bit bus.

Q: What benchmark score does the RX 7600M achieve, and where does it rank?

A: The RX 7600M scores 63,775 points in Geekbench OpenCL, placing it at the 89th percentile among all GPUs in the database.

Q: Does the MI308X support DirectX or Vulkan?

A: No. The MI308X reports N/A for DirectX, OpenGL, and Vulkan. It has no display outputs and no ROPs, making it unsuitable for graphics rendering.

Q: What are the power requirements for each card?

A: The MI308X has a 750 W TDP and a suggested power supply of 1150 W. The RX 7600M has a 90 W TDP and no suggested PSU listed.

Q: How does the RX 7600M compare to its nearest rivals in the database?

A: The RX 7600M is 0.1 percent behind the RX 9060 XT LP and CMP 30HX, 0.1 percent ahead of the Radeon Pro Vega 56, and 0.7 percent behind the Radeon Pro WX 9100.

The Verdict

The data supports a clear separation of roles. The AMD Instinct MI308X is a datacenter compute accelerator with massive memory capacity, extreme bandwidth, and FP32 throughput that is 4.7x higher than the RX 7600M. It has no display outputs, no graphics API support, and no ROPs, so it cannot function as a rendering GPU. Its 192 GB of HBM3 and 5.32 TB/s bandwidth make it suited for large-scale compute workloads that fit in GPU memory, though the database contains no benchmark scores to quantify real-world performance.

The AMD Radeon RX 7600M is a mobile graphics processor with confirmed benchmark data. Its Geekbench OpenCL score of 63,775 places it at the 89th percentile, and its nearest rivals show it is competitive with workstation-class cards like the Radeon Pro WX 9100, trailing by only 0.7 percent. It supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4, includes 28 ray tracing cores, and operates within a 90 W TDP, making it suitable for portable devices that need both graphics and compute capability.

For users selecting between the two, the choice depends entirely on the workload. The MI308X is the only option for memory-bound or FP32-heavy compute tasks that require more than 8 GB of capacity or more than 256.0 GB/s of bandwidth. The RX 7600M is the only option for graphics rendering, ray tracing, or any workload that requires a display output. The database records zero wins for the MI308X and one win for the RX 7600M in benchmark tests, but the architectural specifications make clear that these products are not competitors. They are complementary accelerators for different segments of the AMD product stack.