AMD Instinct MI300A vs AMD Radeon AI PRO R9700 Comparison

Where Each One Wins

The AMD Instinct MI300A and AMD Radeon AI PRO R9700 occupy entirely separate performance domains. The data shows the MI300A is a compute accelerator with no display outputs, no graphics API support (DirectX, OpenGL, and Vulkan are all listed as N/A), and a pixel rate of 0 MPixel/s. Its design targets raw throughput for server workloads. The R9700, by contrast, is a fully featured graphics card with DirectX 12 Ultimate (12_2), OpenGL 4.6, Vulkan 1.4, and four display outputs (1x HDMI 2.1b, 3x DisplayPort 2.1a). Its benchmark scores span 3DMark Steel Nomad, Geekbench, and PassMark suites, which the MI300A lacks entirely.

The MI300A wins in memory capacity and bandwidth. It carries 128 GB of HBM3 across an 8192-bit bus, delivering 5.32 TB/s. The R9700 has 32 GB of GDDR6 on a 256-bit bus at 644.6 GB/s. That is a 4x capacity advantage and roughly 8.25x bandwidth advantage for the MI300A. Texture rate also favors the MI300A: 1,915.2 GTexel/s versus 747.5 GTexel/s. However, the R9700 wins in pixel rate (373.8 GPixel/s versus 0), clock speeds (2920 MHz boost versus 2100 MHz), and power efficiency, with a 300 W TDP versus 750 W.

The R9700 is the only one with a recorded benchmark profile. Its average benchmark score is 23,315, and it sits at the 69th percentile among all GPUs. The MI300A has no benchmarks recorded, a 50th percentile, and an average score of 0. The use-case split is clear: the MI300A is for memory-bound server compute, while the R9700 is for graphics, rendering, and general-purpose compute with a display attached.

Architecture Differences

The MI300A uses the Aqua Vanjaram chip built on CDNA 3.0 architecture, fabricated on a 5 nm process at TSMC. It contains 153,000 million transistors on a 1017 mm² die, yielding a transistor density of 150.4M per mm². This is a massive accelerator with 14,592 shading units, 912 texture mapping units, and zero ROPs. It has no ray tracing cores listed, no tensor cores listed, and its FP32 throughput is 61.29 TFLOPS. Memory runs at 1300 MHz with 5.2 Gbps effective speed, using HBM3. The slot width is OAM Module, it has no power connectors (board power is integrated), and it requires a suggested 1150 W PSU. The bus interface is PCIe 5.0 x16. Release date is December 5, 2023, and its predecessor is Radeon Instinct.

The R9700 uses the Navi 48 chip on RDNA 4.0 architecture, fabricated on a 4 nm process at TSMC. It contains 53,900 million transistors on a 357 mm² die, yielding a transistor density of 151.0M per mm². That density is nearly identical to the MI300A, but the die is 2.85x smaller. The R9700 has 4,096 shading units, 256 TMUs, 128 ROPs, and 64 ray tracing cores. Its FP32 throughput is 47.84 TFLOPS, and FP16 is also 47.84 TFLOPS (1:1 ratio). Memory runs at 2518 MHz with 20.1 Gbps effective speed, using GDDR6. Base clock is 1660 MHz, boost is 2920 MHz, and game clock is 2350 MHz. The card is dual-slot, 267 mm long, 111 mm high, and 40 mm wide. It has one 16-pin power connector, a 300 W TDP, and a suggested 700 W PSU. Release date is July 22, 2025, and its predecessor is Radeon Pro Vega. Its production status is Active, and its launch MSRP is 1,299 USD.

Key architectural differences: CDNA 3.0 versus RDNA 4.0, 5 nm versus 4 nm, no ROPs versus 128 ROPs, no ray tracing cores versus 64, HBM3 versus GDDR6, and a 153,000 million transistor count versus 53,900 million. The MI300A has no display outputs; the R9700 has four. The MI300A uses an OAM module form factor; the R9700 is a standard dual-slot PCIe card.

Head-to-Head Benchmarks

The database records no direct head-to-head benchmark results between these two products. The MI300A has no benchmark entries, no wins, and no nearest rivals. The R9700 has ten recorded benchmarks. Its strongest result is in Geekbench OpenCL with a score of 118,202. In Geekbench Vulkan, it scores 63,550. In PassMark G3D, it scores 26,979. In PassMark GPU Compute, it scores 15,300. In PassMark G2D, it scores 1,236. The DirectX legacy tests show 363 in DirectX 9, 272 in DirectX 11, 155 in DirectX 10, and 83 in DirectX 12. In 3DMark Steel Nomad DX12, it scores 7,006.

The R9700's nearest rivals in the database are all within 0.3% of its average score. The AMD Radeon R9 M290X has an average score of 23,276, which is 0.2% lower. The AMD Radeon RX 6600M also averages 23,273, a 0.2% difference. The AMD Radeon Pro Vega 16 averages 23,250, a 0.3% difference. The NVIDIA P106-100 averages 23,249, also a 0.3% difference. These rivals are clustered tightly, indicating the R9700's average score of 23,315 is essentially tied with them. The R9700's 69th percentile placement reflects this narrow margin over a group of older or lower-tier products.

Without any recorded scores for the MI300A, no direct comparison is possible. The only quantitative comparison available is from the specification data. The MI300A's FP32 of 61.29 TFLOPS is 28.1% higher than the R9700's 47.84 TFLOPS. Its texture rate of 1,915.2 GTexel/s is 156% higher than the R9700's 747.5 GTexel/s. Its memory bandwidth of 5.32 TB/s is 725% higher than the R9700's 644.6 GB/s. But the R9700 has a 373.8 GPixel/s pixel rate where the MI300A has zero, and it has 64 ray tracing cores where the MI300A has none. The R9700's FP16 throughput matches its FP32 at 47.84 TFLOPS, while the MI300A has no FP16 figure recorded. These are the only head-to-head facts the database supports.

The Verdict

The data indicates these are not competing products. The MI300A is a server accelerator with 128 GB of HBM3, 5.32 TB/s bandwidth, and no graphics output. It has a 750 W TDP, requires a 1150 W suggested PSU, and is an OAM module with no power connectors. Its 50th percentile and zero benchmark scores reflect that it is not evaluated by typical GPU test suites. The R9700 is a workstation graphics card with 32 GB GDDR6, 644.6 GB/s bandwidth, four display outputs, and full API support. It has a 300 W TDP, a 700 W suggested PSU, and sits at the 69th percentile with an average score of 23,315.

For workloads requiring massive memory capacity and extreme bandwidth, the MI300A is the only choice from this pair. Its 153,000 million transistors on a 1017 mm² die and 1,915.2 GTexel/s texture rate target dense compute. For any workload that needs a display, ray tracing, or standard graphics APIs, the R9700 is the only viable option. Its 64 ray tracing cores, 128 ROPs, and 373.8 GPixel/s pixel rate are absent from the MI300A entirely.

The R9700's nearest rivals being within 0.3% of its average score suggests it is not a performance outlier in its class. It sits slightly above the R9 M290X, RX 6600M, Pro Vega 16, and P106-100, but only marginally. Its 69th percentile indicates it is better than most GPUs in the database, but not by a wide margin. The MI300A's 50th percentile with no scores is a neutral placeholder, not a performance ranking.

Pick the MI300A for server-side compute with huge memory pools. Pick the R9700 for professional graphics, rendering, or compute tasks that need a display and modern API support. The data does not support any other conclusion.

FAQ

Q: Which product has more memory bandwidth?

A: The AMD Instinct MI300A has 5.32 TB/s bandwidth, compared to 644.6 GB/s for the AMD Radeon AI PRO R9700.

Q: Can the MI300A output video to a display?

A: No. The MI300A has no display outputs, while the R9700 has 1x HDMI 2.1b and 3x DisplayPort 2.1a.

Q: What is the FP32 performance difference?

A: The MI300A delivers 61.29 TFLOPS FP32, while the R9700 delivers 47.84 TFLOPS FP32, a 28.1% advantage for the MI300A.

Q: Does the R9700 support ray tracing?

A: Yes. The R9700 has 64 ray tracing cores, while the MI300A has no ray tracing cores listed.

Q: What is the R9700's average benchmark score and percentile?

A: The R9700 has an average benchmark score of 23,315 and sits at the 69th percentile among all GPUs. Its nearest rival, the AMD Radeon R9 M290X, has an average score of 23,276, which is 0.2% lower.

Q: What are the power requirements for each?

A: The MI300A has a 750 W TDP and a suggested 1150 W PSU. The R9700 has a 300 W TDP and a suggested 700 W PSU.