AMD Instinct MI300A vs AMD Radeon RX 7700 Comparison

AMD Instinct MI300A is a compute-oriented accelerator built on CDNA 3.0, while AMD Radeon RX 7700 is a graphics card from the Radeon RX 7000 series built on RDNA 3.0. The two share a manufacturer and a 5 nm TSMC process node, but they diverge sharply in design goals. The MI300A has no display outputs, no raster operations pipeline, and no benchmark scores recorded in the database. The RX 7700 has a full graphics feature set, active production status, and a full set of benchmark results. This analysis compares the recorded specifications and available measurements.

Where Each One Wins

The AMD Radeon RX 7700 is the only one of the two with benchmark data in the database. It holds wins in every measured test category because the MI300A has no recorded benchmark scores, no average score, and no nearest rivals. The RX 7700 posts a 3DMark Steel Nomad DX12 score of 2865, a Geekbench OpenCL score of 106028, and a PassMark G3D score of 20974. The MI300A has a percentile rank of 50 against all GPUs and an average benchmark score of 0, meaning the database contains no performance measurements for it. The RX 7700 sits at the 58th percentile against all GPUs with an average benchmark score of 15852.

The MI300A wins in raw compute resources by specification. It carries 14592 shading units, 912 texture mapping units, and a 8192 bit memory bus, compared to the RX 7700's 2560 shading units, 160 texture mapping units, and 256 bit bus. The MI300A also leads in FP32 throughput at 61.29 TFLOPS versus 25.18 TFLOPS for the RX 7700. Texture rate favors the MI300A at 1915.2 GTexel/s versus 393.4 GTexel/s. The MI300A has no pixel rate (0 MPixel/s) while the RX 7700 delivers 236.1 GPixel/s, so the RX 7700 wins in any rasterization task.

The RX 7700 wins on memory bandwidth per watt and system integration. Its 624.1 GB/s bandwidth comes with a 200 W TDP, while the MI300A's 5.32 TB/s bandwidth requires a 750 W TDP. The RX 7700 uses PCIe 4.0 x16 and standard dual-slot dimensions, whereas the MI300A is an OAM Module with no power connectors listed and a suggested PSU of 1150 W.

Architecture Differences

The MI300A uses the Aqua Vanjaram chip with CDNA 3.0 architecture, designed for compute acceleration. The RX 7700 uses the Navi 32 chip with RDNA 3.0 architecture, designed for graphics rendering. The MI300A is part of the Instinct (MIx) generation with a predecessor of Radeon Instinct. The RX 7700 is in the Navi III (RX 7000) generation, with a predecessor of Navi II and a successor listed as Navi IV.

The MI300A integrates 153000 million transistors on a 1017 mm² die, yielding a transistor density of 150.4 million per mm². The RX 7700 integrates 28100 million transistors on a 346 mm² die, yielding 81.2 million per mm². Both use TSMC as the foundry and a 5 nm process node, but the MI300A packs more than five times the transistor count into roughly three times the die area.

Memory architecture differs fundamentally. The MI300A uses 128 GB of HBM3 on a 8192 bit bus, reaching 5.32 TB/s bandwidth. The RX 7700 uses 16 GB of GDDR6 on a 256 bit bus, reaching 624.1 GB/s. The MI300A's memory clock is listed as 1300 MHz (5.2 Gbps effective) while the RX 7700's memory clock is 2438 MHz (19.5 Gbps effective).

The MI300A has no RT cores listed, no tensor cores listed, and no raster operations pipeline (0 ROPs). The RX 7700 has 40 RT cores and 96 ROPs. The MI300A lists no API support for DirectX, OpenGL, or Vulkan, while the RX 7700 supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The MI300A has no display outputs; the RX 7700 has 1x HDMI 2.1a, 2x DisplayPort 2.1, and 1x USB Type-C.

Clock behavior differs as well. The MI300A runs a base clock of 1000 MHz and a boost clock of 2100 MHz. The RX 7700 runs a base clock of 1900 MHz, a game clock of 2041 MHz, and a boost clock of 2459 MHz. The RX 7700's higher clocks reflect its graphics workload focus. The MI300A's lower clocks and massive parallel width reflect a throughput-oriented design.

FAQ

Q: Which card has higher FP32 compute?

A: The MI300A delivers 61.29 TFLOPS FP32, which is more than double the RX 7700's 25.18 TFLOPS.

Q: Does the MI300A support graphics APIs?

A: No. The MI300A lists DirectX as N/A, OpenGL as N/A, and Vulkan as N/A. It also has no display outputs.

Q: Which card has more memory bandwidth?

A: The MI300A has 5.32 TB/s bandwidth from 128 GB of HBM3 on a 8192 bit bus. The RX 7700 has 624.1 GB/s from 16 GB of GDDR6 on a 256 bit bus.

Q: What is the RX 7700's percentile ranking?

A: The RX 7700 ranks at the 58th percentile against all GPUs, with an average benchmark score of 15852.

Q: How does the RX 7700 compare to its nearest rivals?

A: The RX 7700 trails the AMD Radeon RX 9060 by 1 percent, trails the NVIDIA GeForce RTX 3060 Ti by 1.7 percent, sits 0.1 percent behind the AMD Radeon R9 370X, and leads the AMD Radeon Pro W5500 by 1.1 percent.

Q: Does the MI300A have any benchmark scores?

A: No. The MI300A has an empty benchmark list, an average benchmark score of 0, and a percentile rank of 50 against all GPUs.

Specification Differences

The MI300A and RX 7700 differ in nearly every major specification. The MI300A uses the Aqua Vanjaram chip; the RX 7700 uses Navi 32. The MI300A is in the Instinct (MIx) generation; the RX 7700 is in the Navi III (RX 7000) generation. The MI300A has no series listed; the RX 7700 belongs to the Radeon RX 7000 series.

Transistor counts: 153000 million for the MI300A versus 28100 million for the RX 7700. Die size: 1017 mm² versus 346 mm². Transistor density: 150.4 million per mm² versus 81.2 million per mm². Base clock: 1000 MHz versus 1900 MHz. Boost clock: 2100 MHz versus 2459 MHz. The RX 7700 has a game clock of 2041 MHz; the MI300A has no game clock. Memory clock: 1300 MHz (5.2 Gbps effective) versus 2438 MHz (19.5 Gbps effective).

Memory size: 128 GB versus 16 GB. Memory type: HBM3 versus GDDR6. Bus width: 8192 bit versus 256 bit. Bandwidth: 5.32 TB/s versus 624.1 GB/s. Shading units: 14592 versus 2560. TMUs: 912 versus 160. ROPs: 0 versus 96. RT cores: none listed versus 40. FP32: 61.29 TFLOPS versus 25.18 TFLOPS. The RX 7700 lists FP16 at 25.18 TFLOPS (1:1); the MI300A lists no FP16 figure.

Pixel rate: 0 MPixel/s versus 236.1 GPixel/s. Texture rate: 1915.2 GTexel/s versus 393.4 GTexel/s. TDP: 750 W versus 200 W. Slot width: OAM Module versus dual-slot. Power connectors: none versus 2x 8-pin. Suggested PSU: 1150 W versus 550 W. Bus interface: PCIe 5.0 x16 versus PCIe 4.0 x16. Display outputs: none versus 1x HDMI 2.1a, 2x DisplayPort 2.1, 1x USB Type-C. APIs: none versus DirectX 12 Ultimate (12_2), OpenGL 4.6, Vulkan 1.4. Dimensions: none recorded for the MI300A; the RX 7700 measures 267 mm in length, 135 mm in height, and 50 mm in width.

Release dates differ: the MI300A launched on 2023-12-05, the RX 7700 on 2025-09-17. Production status: none recorded for the MI300A, active for the RX 7700. The RX 7700 lists a successor as Navi IV; the MI300A has no successor recorded.

Head-to-Head Benchmarks

The database contains no head-to-head benchmark results between the MI300A and the RX 7700. The wins counter shows 0 for both sides. The MI300A has no benchmark scores at all, so direct comparison rests entirely on the RX 7700's recorded measurements and the MI300A's specification sheet.

The RX 7700's strongest recorded results come from compute-oriented tests. Its Geekbench OpenCL score is 106028, far above its PassMark GPU compute score of 10963. In DirectX tests, the RX 7700 records 2865 in 3DMark Steel Nomad DX12, 186 in PassMark DirectX 11, 96 in PassMark DirectX 12, and 92 in PassMark DirectX 10. Its PassMark DirectX 9 score is 261. The PassMark G2D score is 1206 and the PassMark G3D score is 20974.

The MI300A cannot enter these comparisons because it lacks graphics API support and has no benchmark entries. Its FP32 throughput of 61.29 TFLOPS exceeds the RX 7700's 25.18 TFLOPS by a factor of roughly 2.4. Its texture rate of 1915.2 GTexel/s exceeds the RX 7700's 393.4 GTexel/s by a factor of roughly 4.9. Its memory bandwidth of 5.32 TB/s exceeds the RX 7700's 624.1 GB/s by a factor of roughly 8.5. These are specification advantages, not measured benchmark results.

The RX 7700's nearest rival data provides context for its measured performance. It sits 0.1 percent behind the AMD Radeon R9 370X, 1 percent behind the AMD Radeon RX 9060, and 1.7 percent behind the NVIDIA GeForce RTX 3060 Ti. It leads the AMD Radeon Pro W5500 by 1.1 percent. The MI300A has no nearest rival list, reinforcing the absence of measured performance data.

The Verdict

The RX 7700 is the only option with recorded benchmark results. It ranks at the 58th percentile against all GPUs, with an average benchmark score of 15852. It supports modern graphics APIs, includes display outputs, and fits in a dual-slot form factor with a 200 W TDP. Its nearest rivals show tight competition: within 1.7 percent of several cards. The MI300A has no benchmark scores and no API support, so it cannot be assessed for graphics workloads.

The MI300A is a compute accelerator with extreme specifications. Its 153000 million transistors, 1017 mm² die, 128 GB HBM3 memory, and 61.29 TFLOPS FP32 throughput position it for large-scale compute tasks. Its 750 W TDP, OAM Module form factor, and lack of display outputs confirm that it is not intended for desktop graphics.

The data indicates a clear functional split. The RX 7700 serves graphics rendering and general GPU tasks with measurable performance. The MI300A serves compute acceleration with no measured graphics performance in the database. Buyers requiring display output, graphics API support, and benchmark-verified performance should select the RX 7700. Buyers requiring massive memory capacity, extreme bandwidth, and high FP32 throughput in a compute context should consider the MI300A. The database offers no measured performance for the MI300A, so any selection decision for that part must rely on its specification sheet alone.