AMD Instinct MI325X vs AMD Radeon RX 9070 GRE Comparison

Head-to-Head Benchmarks

The AMD Instinct MI325X and the AMD Radeon RX 9070 GRE occupy entirely different segments of the hardware spectrum, and the benchmark data reflects this divergence clearly. The MI325X is a compute-oriented accelerator built on the CDNA 3.0 architecture, while the RX 9070 GRE is a graphics card from the RDNA 4.0 lineup. Direct benchmark comparisons between the two are limited, as the database records no head-to-head test results. However, the individual specifications and available benchmark scores provide a basis for analysis.

The RX 9070 GRE has recorded benchmark scores in two tests. In 3DMark Steel Nomad DX12, it scores 5424 points. In Geekbench OpenCL, it scores 109309 points. These results place the card in the 87th percentile of all GPUs in the database, with an average benchmark score of 57367. Its nearest rivals in the database include the Intel Arc A580, which has an average score of 57756 and a delta of -0.7%, meaning the RX 9070 GRE trails it by 0.7%. The AMD Radeon RX 5600 OEM sits at 58085 with a delta of -1.2%, the Intel Arc A570M at 58239 with a delta of -1.5%, and the AMD Radeon RX 6950 XT at 58392 with a delta of -1.8%. These deltas are narrow, indicating that the RX 9070 GRE performs within a tight band of these comparable cards in the database's aggregate scoring.

The MI325X, in contrast, has no recorded benchmark scores in the database. Its percentile versus all GPUs is 50, and its average benchmark score is 0. This absence of data means the accelerator cannot be directly ranked against consumer graphics cards in the same way. The MI325X is designed for a different workload profile, one that does not rely on the same rendering-oriented tests that populate consumer GPU benchmarks.

In terms of raw compute throughput, the MI325X delivers 81.72 TFLOPS of FP32 and FP16 performance, with the FP16 figure operating at a 1:1 ratio. The RX 9070 GRE delivers 34.28 TFLOPS in both FP32 and FP16, also at a 1:1 ratio. This means the MI325X offers more than double the floating-point throughput of the RX 9070 GRE, a significant margin that speaks to its intended role in high-performance computing tasks. The texture rate of the MI325X is 2,553.6 GTexel/s, compared to 535.7 GTexel/s for the RX 9070 GRE, a difference of roughly 4.8 times in favor of the accelerator. The pixel rate, however, tells a different story. The MI325X lists a pixel rate of 0 MPixel/s, as it has no ROPs, while the RX 9070 GRE has 96 ROPs and a pixel rate of 267.8 GPixel/s. This absence of rasterization hardware in the MI325X makes it unsuitable for traditional graphics rendering, whereas the RX 9070 GRE is fully equipped for it.

Memory configurations further separate the two. The MI325X carries 256 GB of HBM3e memory on an 8192-bit bus, yielding a bandwidth of 6.14 TB/s. The RX 9070 GRE has 12 GB of GDDR6 memory on a 192-bit bus, with a bandwidth of 432.0 GB/s. The MI325X offers over 14 times the memory bandwidth and over 21 times the memory capacity. These numbers indicate that the MI325X is built for data-intensive workloads that require vast memory pools and extreme throughput, while the RX 9070 GRE is sized for conventional gaming and graphics applications.

Clock speeds also differ markedly. The MI325X has a base clock of 1000 MHz and a boost clock of 2100 MHz. The RX 9070 GRE has a base clock of 1420 MHz, a game clock of 2220 MHz, and a boost clock of 2790 MHz. The RX 9070 GRE runs at higher absolute frequencies, but the MI325X compensates with a far larger execution unit count. The MI325X has 19,456 shading units and 1,216 TMUs, while the RX 9070 GRE has 3,072 shading units and 192 TMUs. The MI325X also has a transistor count of 153,000 million on a 1017 mm² die, compared to the RX 9070 GRE's 53,900 million transistors on a 357 mm² die. Transistor densities are nearly identical, at 150.4 million per mm² for the MI325X and 151.0 million per mm² for the RX 9070 GRE, reflecting similar design efficiency despite the massive difference in scale.

The Verdict

The data indicates that the AMD Instinct MI325X and the AMD Radeon RX 9070 GRE serve fundamentally different purposes, and the choice between them depends entirely on the workload. The MI325X is an accelerator with no display outputs, no ROPs, and no API support for DirectX, OpenGL, or Vulkan. It cannot render graphics to a screen. The RX 9070 GRE, by contrast, supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, and it provides display outputs including 1x HDMI 2.1b and 3x DisplayPort 2.1a. The RX 9070 GRE is a complete graphics solution for interactive use, while the MI325X is a specialized compute engine.

The MI325X holds a decisive advantage in raw compute metrics. Its FP32 and FP16 performance of 81.72 TFLOPS is more than double the RX 9070 GRE's 34.28 TFLOPS. Its memory bandwidth of 6.14 TB/s dwarfs the RX 9070 GRE's 432.0 GB/s, and its 256 GB capacity is unmatched by the RX 9070 GRE's 12 GB. For workloads that demand massive parallel processing and large memory footprints, the MI325X is the clear choice based on the recorded specifications.

The RX 9070 GRE wins in graphics-specific capabilities. Its 267.8 GPixel/s pixel rate, 96 ROPs, and 48 RT cores provide the hardware needed for rasterization and ray tracing, which the MI325X lacks entirely. The RX 9070 GRE also operates at higher clock speeds, with a boost of 2790 MHz versus 2100 MHz for the MI325X, and it has a significantly lower power profile, with a TDP of 220 W versus 1000 W for the MI325X. The suggested PSU for the RX 9070 GRE is 550 W, while the MI325X requires a 1400 W PSU. These figures indicate that the RX 9070 GRE is suitable for standard desktop systems, while the MI325X demands a server-class power infrastructure.

The RX 9070 GRE also has a recorded launch MSRP of 549 USD, whereas the MI325X has no launch MSRP in the database. This absence of pricing data for the MI325X reflects its positioning outside the consumer market. The production status of the RX 9070 GRE is listed as Active, while the MI325X has no production status recorded. The release dates differ as well, with the MI325X released on 2024-10-09 and the RX 9070 GRE released on 2025-05-07.

Where Each One Wins

The AMD Instinct MI325X wins in compute-heavy scenarios. The data shows it delivers 81.72 TFLOPS of FP32 and FP16 performance, which is more than double the RX 9070 GRE's 34.28 TFLOPS. Its texture rate of 2,553.6 GTexel/s is roughly 4.8 times higher than the RX 9070 GRE's 535.7 GTexel/s. The MI325X also has 19,456 shading units and 1,216 TMUs, versus 3,072 shading units and 192 TMUs for the RX 9070 GRE. For AI training, scientific simulation, or large-scale data processing, the MI325X's 256 GB of HBM3e memory and 6.14 TB/s bandwidth provide the capacity and speed required for datasets that would exhaust the RX 9070 GRE's 12 GB allocation.

The RX 9070 GRE wins in graphics rendering and interactive applications. It has a pixel rate of 267.8 GPixel/s, enabled by its 96 ROPs, a feature the MI325X lacks entirely with its 0 MPixel/s pixel rate and 0 ROPs. The RX 9070 GRE includes 48 RT cores for ray tracing, which the MI325X does not list. Its API support for DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4 allows it to run modern games and graphics software, while the MI325X lists N/A for all three APIs. The RX 9070 GRE also has a higher boost clock of 2790 MHz, compared to 2100 MHz for the MI325X, and it uses a dual-slot form factor with 2x 8-pin power connectors, whereas the MI325X is an OAM module with no power connectors listed.

The RX 9070 GRE also wins in power efficiency and system integration. Its TDP of 220 W is substantially lower than the MI325X's 1000 W, and its suggested PSU of 550 W is far below the MI325X's 1400 W requirement. The RX 9070 GRE is built on a 4 nm process node, while the MI325X uses a 5 nm node. Both are fabricated by TSMC, and the transistor densities are nearly identical, but the smaller node for the RX 9070 GRE contributes to its lower power draw. The RX 9070 GRE also has a smaller die at 357 mm², compared to 1017 mm² for the MI325X, and a lower transistor count of 53,900 million versus 153,000 million.

The RX 9070 GRE has recorded benchmark scores and a percentile ranking of 87, which places it above the majority of GPUs in the database. Its nearest rivals all have average scores within 2% of its own, indicating consistent performance in its class. The MI325X has no benchmark scores and a percentile of 50, which reflects the absence of data rather than a performance judgment.

FAQ

Q: Which GPU has higher FP32 performance?

A: The AMD Instinct MI325X delivers 81.72 TFLOPS of FP32 performance, while the AMD Radeon RX 9070 GRE delivers 34.28 TFLOPS. The MI325X offers more than double the FP32 throughput.

Q: Does the MI325X support display outputs?

A: No. The MI325X lists "No outputs" for display outputs, and it has no ROPs, resulting in a pixel rate of 0 MPixel/s. The RX 9070 GRE provides 1x HDMI 2.1b and 3x DisplayPort 2.1a outputs.

Q: What is the memory bandwidth difference?

A: The MI325X has a memory bandwidth of 6.14 TB/s using HBM3e on an 8192-bit bus, while the RX 9070 GRE has 432.0 GB/s using GDDR6 on a 192-bit bus. The MI325X exceeds the RX 9070 GRE's bandwidth by a factor of over 14.

Q: How do the benchmark scores compare?

A: The RX 9070 GRE has recorded scores of 5424 in 3DMark Steel Nomad DX12 and 109309 in Geekbench OpenCL, with an average benchmark score of 57367 and an 87th percentile ranking. The MI325X has no recorded benchmark scores and a 50th percentile ranking.

Q: What is the power consumption difference?

A: The MI325X has a TDP of 1000 W and requires a suggested PSU of 1400 W. The RX 9070 GRE has a TDP of 220 W and a suggested PSU of 550 W.

Q: Which architecture does each use?

A: The MI325X uses CDNA 3.0 architecture, while the RX 9070 GRE uses RDNA 4.0 architecture. The MI325X is built on a 5 nm process, and the RX 9070 GRE uses a 4 nm process, both from TSMC.

Architecture Differences

The AMD Instinct MI325X and the AMD Radeon RX 9070 GRE are built on different architectures that target distinct markets. The MI325X uses CDNA 3.0, an architecture designed for compute acceleration, while the RX 9070 GRE uses RDNA 4.0, an architecture optimized for graphics rendering. This fundamental difference is reflected in their hardware configurations.

The MI325X, with the chip designation Aqua Vanjaram, has 19,456 shading units and 1,216 TMUs, but it has 0 ROPs and no RT cores or tensor cores listed. This configuration prioritizes parallel compute throughput over rasterization or ray tracing. The RX 9070 GRE, with the chip Navi 48, has 3,072 shading units, 192 TMUs, 96 ROPs, and 48 RT cores. The presence of ROPs and RT cores makes it a full graphics processor capable of handling rendering pipelines.

The process nodes differ. The MI325X is fabricated on a 5 nm process, while the RX 9070 GRE uses a 4 nm process, both by TSMC. The transistor counts reflect the scale difference: the MI325X has 153,000 million transistors on a 1017 mm² die, while the RX 9070 GRE has 53,900 million transistors on a 357 mm² die. Transistor densities are nearly equal, at 150.4M per mm² for the MI325X and 151.0M per mm² for the RX 9070 GRE, indicating that both chips achieve similar packing efficiency despite their size difference.

Memory architecture also diverges. The MI325X uses HBM3e with a 256 GB capacity, an 8192-bit bus, and a bandwidth of 6.14 TB/s. The RX 9070 GRE uses GDDR6 with a 12 GB capacity, a 192-bit bus, and a bandwidth of 432.0 GB/s. HBM3e provides far higher bandwidth and capacity, suited for large-scale compute workloads, while GDDR6 offers a more conventional solution for consumer graphics.

Clock speeds behave differently as well. The MI325X has a base clock of 1000 MHz and a boost clock of 2100 MHz. The RX 9070 GRE has a base clock of 1420 MHz, a game clock of 2220 MHz, and a boost clock of 2790 MHz. The RX 9070 GRE runs at higher frequencies, but the MI325X compensates with a much larger number of execution units.

Power and form factor differences are substantial. The MI325X has a TDP of 1000 W, a slot width of OAM Module, and no power connectors, indicating it is designed for server integration. The RX 9070 GRE has a TDP of 220 W, a dual-slot width, and 2x 8-pin power connectors, making it compatible with standard desktop power supplies. The suggested PSU values are 1400 W for the MI325X and 550 W for the RX 9070 GRE.

API support is another key differentiator. The MI325X lists N/A for DirectX, OpenGL, and Vulkan, meaning it has no graphics API support. The RX 9070 GRE supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, enabling it to run modern games and graphics applications. The RX 9070 GRE also has display outputs, while the MI325X has none.

The RX 9070 GRE is part of the Radeon RX 9000 series and the Navi IV generation, with a production status of Active. The MI325X is part of the Instinct (MIx) generation, with no production status recorded. The RX 9070 GRE has a predecessor listed as Navi III, while the MI325X has a predecessor listed as Radeon Instinct. Both have no successor listed. The RX 9070 GRE has a launch MSRP of 549 USD, while the MI325X has none. These details confirm the RX 9070 GRE is a consumer product with a defined market position, while the MI325X is an enterprise accelerator without a consumer-facing price or production timeline.