AMD Radeon Instinct MI355X vs AMD Radeon RX 7950 XT

Comparison of AMD Radeon Instinct MI355X with 288 GB HBM3e and 16,384 cores vs AMD Radeon RX 7950 XT with 20 GB GDDR6 and 5,376 cores.

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Performance Rating

AMD Radeon Instinct MI355X outperforms AMD Radeon RX 7950 XT by 266.31% in the overall GPU ARK performance rating

A100 A100
H200 H200
MI325X MI325X

AMD Radeon Instinct MI355X

93.5

AMD Radeon Instinct MI355X

93.5
RX 7900 XTX RX 7900 XTX
MI250 MI250
Instinct MI300X Instinct MI300X

AMD Radeon RX 7950 XT

25.5

AMD Radeon RX 7950 XT

25.5

Contents:

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

Memory

Memory Size

🔥 +1,340% 288 ГБ
20 ГБ

Memory Type

HBM3e GDDR6

Memory Bandwidth

🔥 8.19 TB/s
800.0 GB/s

Memory Bus Width

8,192 бит 320 бит

ML Performance

FP16 (Half Precision)

🔥 +388% 629.1 TFLOPS
129.0 TFLOPS

BF16 (Brain Float)

No No

TF32 (TensorFloat)

No No

Compute Power

FP32 (Single Precision)

🔥 +22% 78.64 TFLOPS
64.51 TFLOPS

FP64 (Double Precision)

🔥 +3,801% 78.64 TFLOPS
2.016 TFLOPS

CUDA Cores

🔥 +205% 16,384
5,376

RT Cores

No 84

Architecture & Compatibility

GPU Architecture

CDNA 4.0 RDNA 3.0

SM (Streaming Multiprocessor)

No No

PCIe Version

PCIe 5.0 x16 PCIe 4.0 x16

ML Software Support

CUDA Version

No No

Clocks & Performance

Base Clock

🔥 1,000
2,000

Boost Clock

🔥 2,400
3,000

Memory Clock

🔥 2,000
2,500

Power Consumption

TDP/TGP

1400 W
🔥 -79% 300 W

Recommended PSU

1800 W
🔥 -61% 700 W

Power Connector

None 2x 8-pin

Rendering

Texture Units (TMU)

🔥 +205% 1,024
336

ROP

No 84

L2 Cache

🔥 +167% 16 MB
6 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 Dual-slot

Release Date

July 15, 2025 No

Display Outputs

No outputs
1x HDMI 2.1a
2x DisplayPort 2.1
1x USB Type-C

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