AMD Radeon Instinct MI308X vs AMD Radeon Instinct MI355X

Comparison of AMD Radeon Instinct MI308X with 192 GB HBM3 and 19,456 cores vs AMD Radeon Instinct MI355X with 288 GB HBM3e and 16,384 cores.

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Performance Rating

AMD Radeon Instinct MI308X outperforms AMD Radeon Instinct MI355X by 0.62% in the overall GPU ARK performance rating

A100 A100
H200 H200
MI325X MI325X

AMD Radeon Instinct MI308X

94.1

AMD Radeon Instinct MI308X

94.1
RX 7900 XTX RX 7900 XTX
MI250 MI250
Instinct MI300X Instinct MI300X

AMD Radeon Instinct MI355X

93.5

AMD Radeon Instinct MI355X

93.5

Contents:

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

Memory

Memory Size

192 ГБ
🔥 +50% 288 ГБ

Memory Type

HBM3 HBM3e

Memory Bandwidth

🔥 +26% 10.3 TB/s
8.19 TB/s

Memory Bus Width

8,192 бит 8,192 бит

ML Performance

FP16 (Half Precision)

🔥 +4% 653.7 TFLOPS
629.1 TFLOPS

BF16 (Brain Float)

No No

TF32 (TensorFloat)

No No

Compute Power

FP32 (Single Precision)

🔥 +4% 81.72 TFLOPS
78.64 TFLOPS

FP64 (Double Precision)

🔥 +4% 81.72 TFLOPS
78.64 TFLOPS

CUDA Cores

🔥 +19% 19,456
16,384

RT Cores

No No

Architecture & Compatibility

GPU Architecture

CDNA 3.0 CDNA 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 1,000

Boost Clock

2,100
🔥 +14% 2,400

Memory Clock

🔥 +26% 2,525
2,000

Power Consumption

TDP/TGP

🔥 -46% 750 W
1400 W

Recommended PSU

🔥 -36% 1150 W
1800 W

Power Connector

None None

Rendering

Texture Units (TMU)

🔥 +19% 1,216
1,024

ROP

No No

L2 Cache

16 MB 16 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 OAM Module

Release Date

Dec. 6, 2023 July 15, 2025

Display Outputs

No outputs
No outputs

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