AMD Instinct MI308X vs AMD Radeon RX 7600 XT Comparison

Head-to-Head Benchmarks

The database contains benchmark results for the AMD Radeon RX 7600 XT, while the AMD Instinct MI308X has no recorded benchmark scores. The MI308X's average benchmark score is listed as 0, placing it at the 50th percentile of all GPUs in the database. The RX 7600 XT, by contrast, holds an average benchmark score of 17,083, placing it at the 60th percentile. This means the RX 7600 XT outperforms the MI308X in every measurable benchmark category available in the database.

The RX 7600 XT's strongest recorded result is in the Geekbench OpenCL test, where it scores 92,426. Its Geekbench Vulkan score is 48,366, roughly half the OpenCL figure, which indicates a significant performance gap between compute and graphics workloads. In PassMark tests, the RX 7600 XT scores 17,132 in G3D, 8,987 in GPU compute, 1,030 in G2D, 228 in DirectX 9, 167 in DirectX 11, 85 in DirectX 10, and 65 in DirectX 12. The DirectX 12 score of 65 is notably low compared to the DirectX 9 score of 228, suggesting the card handles legacy APIs better than modern ones in this specific benchmark suite.

The nearest rivals to the RX 7600 XT in the database are the NVIDIA GeForce GTX 690 with an average score of 17,037 and a delta of 0.3%, the AMD Radeon HD 7970M with 17,019 and a delta of 0.4%, the NVIDIA GeForce RTX 3070 with 17,208 and a delta of -0.7%, and the NVIDIA Tesla M4 with 16,932 and a delta of 0.9%. The RX 7600 XT sits slightly above the GTX 690 and HD 7970M, marginally below the RTX 3070, and clearly ahead of the Tesla M4.

Because the MI308X has no benchmark entries, the head-to-head comparison is one-sided. The data shows no wins for the MI308X and no wins for the RX 7600 XT in the recorded head-to-head benchmark section, as that list is empty. The only conclusion available from the measured data is that the RX 7600 XT delivers all recorded performance, while the MI308X delivers none in the database's test suite.

The Verdict

The recorded data indicates that the AMD Radeon RX 7600 XT is the only one of the two cards with measurable benchmark performance. Its average benchmark score of 17,083 and 60th percentile ranking confirm it as a functional graphics card in the database's testing environment. The AMD Instinct MI308X, with an average benchmark score of 0 and a 50th percentile ranking, has no recorded performance data, which means it cannot be compared on the same terms.

For any use case that relies on the benchmark metrics tracked by the database, the RX 7600 XT is the clear choice. It delivers scores across DirectX 9, 10, 11, and 12, plus OpenCL, Vulkan, and compute workloads. The MI308X does not appear in any of these tests, so its real-world performance in the database's view is unquantified.

However, the two cards serve fundamentally different purposes based on their specifications. The MI308X is designed for compute workloads with its 192 GB of HBM3 memory and 5.32 TB/s bandwidth, while the RX 7600 XT is a consumer graphics card with 16 GB of GDDR6 memory and 288.0 GB/s bandwidth. The MI308X's lack of display outputs and its OAM Module form factor indicate it is not intended for desktop graphics use. The RX 7600 XT has display outputs, a dual-slot design, and a 1x 8-pin power connector, making it suitable for standard PC builds.

The data suggests that anyone needing benchmark-verified graphics performance should pick the RX 7600 XT. Anyone requiring the MI308X's massive memory pool and compute-oriented architecture would need to look at its specifications, not its benchmark scores, since none exist.

Where Each One Wins

The RX 7600 XT wins in every category where the database records measurements. Its DirectX 9 score of 228 is the highest of its PassMark results, followed by G3D at 17,132 and GPU compute at 8,987. In Geekbench, the OpenCL score of 92,426 far exceeds the Vulkan score of 48,366. These numbers show the RX 7600 XT performs best in compute-heavy OpenCL workloads and legacy DirectX 9 rendering.

The MI308X has no recorded wins in any benchmark category. Its specifications, however, indicate strengths that the database does not measure. The MI308X has 19456 shading units compared to the RX 7600 XT's 2048, and a texture rate of 2,553.6 GTexel/s versus 352.6 GTexel/s. Its FP32 compute is 81.72 TFLOPS versus 22.57 TFLOPS for the RX 7600 XT. These numbers suggest the MI308X would excel in raw compute tasks if benchmarked, but the database contains no such evidence.

For gaming and standard graphics workloads, the RX 7600 XT is the only one with data. For server-style compute with massive memory requirements, the MI308X's 192 GB HBM3 and 8192-bit bus are unmatched by the RX 7600 XT's 16 GB GDDR6 and 128-bit bus. The MI308X also supports PCIe 5.0 x16, while the RX 7600 XT uses PCIe 4.0 x8.

FAQ

Q: Which card has a higher average benchmark score?

A: The AMD Radeon RX 7600 XT has an average benchmark score of 17,083, while the AMD Instinct MI308X has an average benchmark score of 0.

Q: What is the RX 7600 XT's percentile ranking among all GPUs?

A: The RX 7600 XT sits at the 60th percentile of all GPUs in the database, while the MI308X sits at the 50th percentile.

Q: Does the MI308X have any recorded benchmark results?

A: No, the MI308X has an empty benchmark list and an average score of 0.

Q: How does the RX 7600 XT compare to the GeForce RTX 3070 in average score?

A: The RX 7600 XT scores 17,083, which is 0.7% below the RTX 3070's average score of 17,208.

Q: What is the memory configuration difference between the two cards?

A: The MI308X has 192 GB of HBM3 memory on a 8192-bit bus with 5.32 TB/s bandwidth, while the RX 7600 XT has 16 GB of GDDR6 memory on a 128-bit bus with 288.0 GB/s bandwidth.

Q: Which card supports display outputs?

A: The RX 7600 XT has 1x HDMI 2.1a and 3x DisplayPort 2.1 outputs. The MI308X has no display outputs.

Architecture Differences

The two cards use entirely different architectures from AMD. The MI308X is built on CDNA 3.0, AMD's compute-optimized architecture, while the RX 7600 XT uses RDNA 3.0, designed for graphics rendering. The MI308X's chip is called Aqua Vanjaram, and the RX 7600 XT's chip is Navi 33 with the codename Hotpink Bonefish.

The process nodes differ as well. The MI308X uses a 5 nm process from TSMC, while the RX 7600 XT uses a 6 nm process also from TSMC. The MI308X has 153,000 million transistors on a 1017 mm² die, giving a transistor density of 150.4 million per square millimeter. The RX 7600 XT has 13,300 million transistors on a 204 mm² die, with a density of 65.2 million per square millimeter.

Shader core counts are vastly different. The MI308X has 19,456 shading units and 1,216 texture mapping units, but zero ROPs and a pixel rate of 0 MPixel/s. The RX 7600 XT has 2,048 shading units, 128 TMUs, 64 ROPs, and a pixel rate of 176.3 GPixel/s. The MI308X has no ray tracing cores listed, while the RX 7600 XT has 32 ray tracing cores.

API support also differs significantly. The MI308X lists DirectX, OpenGL, and Vulkan as N/A, meaning it has no graphics API support. The RX 7600 XT supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. This confirms the MI308X is not a graphics card in the traditional sense.

Specification Differences

The MI308X draws 750 W of power and requires a suggested PSU of 1150 W, while the RX 7600 XT draws 190 W with a suggested PSU of 450 W. The MI308X uses an OAM Module slot width with no power connectors, while the RX 7600 XT is dual-slot with a 1x 8-pin power connector. The MI308X has a base clock of 1000 MHz and a boost clock of 2100 MHz, while the RX 7600 XT has a base clock of 1980 MHz, a game clock of 2470 MHz, and a boost clock of 2755 MHz.

Memory clocks differ as well. The MI308X runs memory at 1300 MHz with 5.2 Gbps effective, while the RX 7600 XT runs at 2250 MHz with 18 Gbps effective. The MI308X's FP32 performance is 81.72 TFLOPS and FP16 is also 81.72 TFLOPS at a 1:1 ratio. The RX 7600 XT delivers 22.57 TFLOPS for both FP32 and FP16 at 1:1.

The bus interfaces differ: the MI308X uses PCIe 5.0 x16, while the RX 7600 XT uses PCIe 4.0 x8. The RX 7600 XT has physical dimensions of 204 mm in length and 115 mm in height, while the MI308X has no recorded dimensions. Release dates are also different, with the MI308X released on December 5, 2023, and the RX 7600 XT on January 23, 2024. The RX 7600 XT has a launch MSRP of 329 USD, while the MI308X has no recorded launch MSRP. The production status of the RX 7600 XT is active, while the MI308X has no production status listed.