AMD Instinct MI300A vs AMD Radeon RX 7600M XT Comparison

The Verdict

The AMD Instinct MI300A and AMD Radeon RX 7600M XT occupy opposite ends of the AMD accelerator spectrum. The MI300A is a data center compute accelerator built on CDNA 3.0 with a 5 nm process, while the RX 7600M XT is a mobile graphics processor on RDNA 3.0 with a 6 nm process. The database records zero benchmark scores for the MI300A, placing it at the 50th percentile of all GPUs with an average benchmark score of 0. The RX 7600M XT has ten recorded benchmark results, an average score of 12,710, and sits at the 52nd percentile. The MI300A targets compute workloads requiring massive memory and bandwidth; the RX 7600M XT targets portable devices needing rasterization and ray tracing. The data shows the MI300A delivers 61.29 TFLOPS FP32 compute, 128 GB of HBM3 memory, and 5.32 TB/s bandwidth, whereas the RX 7600M XT delivers 20.23 TFLOPS FP32, 8 GB of GDDR6, and 288.0 GB/s bandwidth. The MI300A is for server racks and OAM modules; the RX 7600M XT is for laptops and portable devices. The RX 7600M XT is the only one with active production status and a full graphics API stack.

Architecture Differences

The MI300A uses the Aqua Vanjaram chip with CDNA 3.0 architecture, fabricated by TSMC on a 5 nm process. It integrates 153,000 million transistors on a 1017 mm² die, yielding a transistor density of 150.4 million per mm². The RX 7600M XT uses the Navi 33 chip with RDNA 3.0 architecture, fabricated by TSMC on a 6 nm process. It contains 13,300 million transistors on a 204 mm² die, with a transistor density of 65.2 million per mm². The MI300A has 14,592 shading units, 912 texture mapping units, and 0 ROPs; it has no pixel rate (0 MPixel/s) and a texture rate of 1,915.2 GTexel/s. The RX 7600M XT has 2,048 shading units, 128 TMUs, 64 ROPs, and 32 ray tracing cores. Its pixel rate is 158.0 GPixel/s and texture rate is 316.0 GTexel/s. The MI300A has no RT cores listed, while the RX 7600M XT has dedicated ray tracing hardware. The MI300A uses HBM3 memory across an 8192-bit bus, while the RX 7600M XT uses GDDR6 across a 128-bit bus. The MI300A has no display outputs; the RX 7600M XT has portable device dependent outputs. The MI300A supports no DirectX, OpenGL, or Vulkan APIs; the RX 7600M XT supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The MI300A connects via PCIe 5.0 x16; the RX 7600M XT uses PCIe 4.0 x16. The MI300A has a base clock of 1000 MHz and boost of 2100 MHz; the RX 7600M XT has a base of 1280 MHz, boost of 2469 MHz, and a game clock of 2023 MHz.

Head-to-Head Benchmarks

The database contains no direct head-to-head benchmark entries between the MI300A and RX 7600M XT. The MI300A has zero recorded benchmark scores, so no wins are attributed to it in this comparison. The RX 7600M XT has ten recorded benchmark results, but since the MI300A has none, the winsA and winsB counters show 0 and 0. The RX 7600M XT's benchmark suite includes 3DMark Steel Nomad DX12 with a score of 2048, Geekbench OpenCL with 74,869, Geekbench Vulkan with 27,793, Passmark DirectX 10 with 76, DirectX 11 with 137, DirectX 12 with 58, DirectX 9 with 175, G2D with 894, G3D with 13,907, and GPU Compute with 7,140. Its average benchmark score is 12,710. The nearest rivals for the RX 7600M XT are the NVIDIA GeForce GTX 670 with an average score of 12,773 and a delta of -0.5%, the NVIDIA Tesla K20Xm with 12,625 and +0.7%, the NVIDIA GeForce GTX 590 with 12,830 and -0.9%, and the AMD Radeon Pro 455 with 12,831 and -0.9%. The RX 7600M XT trails the GTX 670 by 0.5%, leads the Tesla K20Xm by 0.7%, trails the GTX 590 by 0.9%, and trails the Radeon Pro 455 by 0.9%. The MI300A's compute capabilities are not represented in any benchmark score, so its relative performance cannot be quantified against either the RX 7600M XT or any other GPU in the database.

Specification Differences

The two accelerators differ across nearly every specification field.

Process node: MI300A uses 5 nm; RX 7600M XT uses 6 nm.

Transistors: MI300A has 153,000 million; RX 7600M XT has 13,300 million.

Die size: MI300A is 1017 mm²; RX 7600M XT is 204 mm².

Transistor density: MI300A has 150.4 million per mm²; RX 7600M XT has 65.2 million per mm².

Base clock: MI300A is 1000 MHz; RX 7600M XT is 1280 MHz.

Boost clock: MI300A is 2100 MHz; RX 7600M XT is 2469 MHz.

Game clock: MI300A has none; RX 7600M XT has 2023 MHz.

Memory clock: MI300A is 1300 MHz (5.2 Gbps effective); RX 7600M XT is 2250 MHz (18 Gbps effective).

Memory size: MI300A has 128 GB; RX 7600M XT has 8 GB.

Memory type: MI300A uses HBM3; RX 7600M XT uses GDDR6.

Memory bus width: MI300A is 8192 bit; RX 7600M XT is 128 bit.

Memory bandwidth: MI300A is 5.32 TB/s; RX 7600M XT is 288.0 GB/s.

Shading units: MI300A has 14,592; RX 7600M XT has 2,048.

TMUs: MI300A has 912; RX 7600M XT has 128.

ROPs: MI300A has 0; RX 7600M XT has 64.

RT cores: MI300A has none; RX 7600M XT has 32.

Pixel rate: MI300A is 0 MPixel/s; RX 7600M XT is 158.0 GPixel/s.

Texture rate: MI300A is 1,915.2 GTexel/s; RX 7600M XT is 316.0 GTexel/s.

FP32 compute: MI300A is 61.29 TFLOPS; RX 7600M XT is 20.23 TFLOPS.

FP16 compute: MI300A has no listed value; RX 7600M XT is 40.45 TFLOPS (2:1).

TDP: MI300A is 750 W; RX 7600M XT is 120 W.

Slot width: MI300A is OAM Module; RX 7600M XT is IGP.

Power connectors: Both have none.

Suggested PSU: MI300A is 1150 W; RX 7600M XT has no listed value.

Bus interface: MI300A is PCIe 5.0 x16; RX 7600M XT is PCIe 4.0 x16.

Display outputs: MI300A has no outputs; RX 7600M XT has portable device dependent outputs.

APIs: MI300A lists N/A for DirectX, OpenGL, and Vulkan; RX 7600M XT lists DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

Production status: MI300A has no listed status; RX 7600M XT is Active.

Release date: MI300A is 2023-12-05; RX 7600M XT is 2023-01-03.

Predecessor: MI300A is Radeon Instinct; RX 7600M XT is Polaris Mobile.

Chip name: MI300A is Aqua Vanjaram; RX 7600M XT is Navi 33.

Codename: MI300A has none; RX 7600M XT is Hotpink Bonefish.

Generation: MI300A is Instinct (MIx); RX 7600M XT is Navi Mobile (RX 7000M).

FAQ

Q: Which GPU has higher raw FP32 compute?

A: The MI300A delivers 61.29 TFLOPS FP32, while the RX 7600M XT delivers 20.23 TFLOPS. The MI300A has 14,592 shading units compared to 2,048 on the RX 7600M XT.

Q: What are the memory differences?

A: The MI300A has 128 GB of HBM3 on an 8192-bit bus with 5.32 TB/s bandwidth. The RX 7600M XT has 8 GB of GDDR6 on a 128-bit bus with 288.0 GB/s bandwidth. The MI300A's memory clock is 1300 MHz (5.2 Gbps effective); the RX 7600M XT's is 2250 MHz (18 Gbps effective).

Q: Which processor supports graphics APIs?

A: The RX 7600M XT supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The MI300A lists N/A for DirectX, OpenGL, and Vulkan, and has no display outputs.

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

A: The RX 7600M XT has an average benchmark score of 12,710. It trails the NVIDIA GeForce GTX 670 (12,773) by 0.5%, leads the NVIDIA Tesla K20Xm (12,625) by 0.7%, trails the NVIDIA GeForce GTX 590 (12,830) by 0.9%, and trails the AMD Radeon Pro 455 (12,831) by 0.9%.

Q: What are the power requirements?

A: The MI300A has a TDP of 750 W and a suggested PSU of 1150 W. The RX 7600M XT has a TDP of 120 W and no suggested PSU listed. Both use no external power connectors.

Q: What are the physical form factors?

A: The MI300A uses an OAM Module slot width, while the RX 7600M XT uses an IGP form factor. The MI300A is designed for server integration; the RX 7600M XT is for portable devices.