AMD Radeon Instinct MI355X vs PowerColor Hellhound RX 7900 GRE

Comparison of AMD Radeon Instinct MI355X with 288 GB HBM3e and 16,384 cores vs PowerColor Hellhound RX 7900 GRE with 16 GB GDDR6 and 5,120 cores.

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Performance Rating

AMD Radeon Instinct MI355X outperforms PowerColor Hellhound RX 7900 GRE by 384.31% 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

PowerColor Hellhound RX 7900 GRE

19.3

PowerColor Hellhound RX 7900 GRE

19.3

Contents:

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

Memory

Memory Size

🔥 +1,700% 288 ГБ
16 ГБ

Memory Type

HBM3e GDDR6

Memory Bandwidth

🔥 8.19 TB/s
576.0 GB/s

Memory Bus Width

8,192 бит 256 бит

ML Performance

FP16 (Half Precision)

🔥 +549% 629.1 TFLOPS
96.91 TFLOPS

BF16 (Brain Float)

No No

TF32 (TensorFloat)

No No

Compute Power

FP32 (Single Precision)

🔥 +62% 78.64 TFLOPS
48.46 TFLOPS

FP64 (Double Precision)

🔥 +5,094% 78.64 TFLOPS
1.514 TFLOPS

CUDA Cores

🔥 +220% 16,384
5,120

RT Cores

No
🔥 80

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
🔥 +56% 1,555

Boost Clock

🔥 +1% 2,400
2,366

Memory Clock

2,000
🔥 +12% 2,250

Power Consumption

TDP/TGP

1400 W
🔥 -81% 260 W

Recommended PSU

1800 W
🔥 -67% 600 W

Power Connector

None 2x 8-pin

Rendering

Texture Units (TMU)

🔥 +220% 1,024
320

ROP

No
🔥 80

L2 Cache

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 July 27, 2023

Display Outputs

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

1x HDMI 2.1a
3x DisplayPort 2.1

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