AMD Radeon Instinct MI355X vs ASRock Phantom Gaming X Radeon VII

Comparison of AMD Radeon Instinct MI355X with 288 GB HBM3e and 16,384 cores vs ASRock Phantom Gaming X Radeon VII with 16 GB HBM2 and 3,840 cores.

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Performance Rating

AMD Radeon Instinct MI355X outperforms ASRock Phantom Gaming X Radeon VII by 562.79% 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

ASRock Phantom Gaming X Radeon VII

14.1

ASRock Phantom Gaming X Radeon VII

14.1

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 HBM2

Memory Bandwidth

🔥 +703% 8.19 TB/s
1.02 TB/s

Memory Bus Width

8,192 бит 4,096 бит

ML Performance

FP16 (Half Precision)

🔥 +2,240% 629.1 TFLOPS
26.88 TFLOPS

BF16 (Brain Float)

No No

TF32 (TensorFloat)

No No

Compute Power

FP32 (Single Precision)

🔥 +485% 78.64 TFLOPS
13.44 TFLOPS

FP64 (Double Precision)

🔥 +2,240% 78.64 TFLOPS
3.36 TFLOPS

CUDA Cores

🔥 +327% 16,384
3,840

RT Cores

No No

Architecture & Compatibility

GPU Architecture

CDNA 4.0 GCN 5.1

SM (Streaming Multiprocessor)

No No

PCIe Version

PCIe 5.0 x16 PCIe 3.0 x16

ML Software Support

CUDA Version

No No

Clocks & Performance

Base Clock

🔥 1,000
1,400

Boost Clock

🔥 +37% 2,400
1,750

Memory Clock

🔥 +100% 2,000
1,000

Power Consumption

TDP/TGP

1400 W
🔥 -79% 295 W

Recommended PSU

1800 W
🔥 -67% 600 W

Power Connector

None 2x 8-pin

Rendering

Texture Units (TMU)

🔥 +327% 1,024
240

ROP

No No

L2 Cache

🔥 +300% 16 MB
4 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 Feb. 7, 2019

Display Outputs

No outputs
1x HDMI 2.0b
3x DisplayPort 1.4a

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