AMD Radeon Instinct MI355X vs ASRock RX 9070 Steel Legend OC

Comparison of AMD Radeon Instinct MI355X with 288 GB HBM3e and 16,384 cores vs ASRock RX 9070 Steel Legend OC with 16 GB GDDR6 and 3,584 cores.

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Performance Rating

H200 H200
MI325X MI325X
A100 A100

AMD Radeon Instinct MI355X

AMD Radeon Instinct MI355X

RX 7900 XTX RX 7900 XTX
Instinct MI300X Instinct MI300X
MI250 MI250

ASRock RX 9070 Steel Legend OC

ASRock RX 9070 Steel Legend OC

Contents:

Memory ML Performance Compute Power Architecture & Compatibility ML Software Support Clocks & Performance Power Consumption Rendering Benchmarks Additional

Memory

Memory Size

288 GB 16 GB

Memory Type

HBM3e GDDR6

Memory Bandwidth

8.19 TB/s 644.6 GB/s

Memory Bus Width

8,192 бит 256 бит

ML Performance

FP16 (Half Precision)

629.1 TFLOPS 77.41 TFLOPS

BF16 (Brain Float)

No No

TF32 (TensorFloat)

No No

Compute Power

FP32 (Single Precision)

78.64 TFLOPS 38.71 TFLOPS

FP64 (Double Precision)

78.64 TFLOPS 1.2096 TFLOPS

CUDA Cores

16,384 3,584

RT Cores

No 56

Architecture & Compatibility

GPU Architecture

CDNA 4.0 RDNA 4.0

SM (Streaming Multiprocessor)

No No

PCIe Version

PCIe 5.0 x16 PCIe 5.0 x16

ML Software Support

CUDA Version

No No

Clocks & Performance

Base Clock

1,000 1,440

Boost Clock

2,400 2,700

Memory Clock

2,000 2,518

Power Consumption

TDP/TGP

1400 W
🔥 -84% 220 W

Recommended PSU

1800 W
🔥 -69% 550 W

Power Connector

None 2x 8-pin

Rendering

Texture Units (TMU)

1,024 224

ROP

No 56

L2 Cache

32 MB 8 MB

Benchmarks

MLPerf, llama2-70b-99.9 (mxfp4)

10 129 tokens/s

MLPerf, llama3.1-405b (mxfp4)

252.4 tokens/s

Additional

Slots

OAM Module Triple-slot

Release Date

March 12, 2025 March 6, 2025

Display Outputs

No outputs
1x HDMI 2.1b
3x DisplayPort 2.1a

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