AMD Radeon Instinct MI355X vs PNY 9800 GX2 XLR8

Comparison of AMD Radeon Instinct MI355X with 288 GB HBM3e and 16,384 cores vs PNY 9800 GX2 XLR8 with 512 GB GDDR3 and 128 cores.

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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

PNY 9800 GX2 XLR8

PNY 9800 GX2 XLR8

Contents:

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

Memory

Memory Size

🔥 288 ГБ
512 MB ×2 (1024 ГБ)

Memory Type

HBM3e GDDR3

Memory Bandwidth

🔥 8.19 TB/s
64.00 GB/s ×2 (128 GB/s)

Memory Bus Width

8,192 бит 256 бит ×2 (512 бит)

ML Performance

FP16 (Half Precision)

🔥 629.1 TFLOPS
No

BF16 (Brain Float)

No No

TF32 (TensorFloat)

No No

Compute Power

FP32 (Single Precision)

🔥 +20,379% 78.64 TFLOPS
0.384 TFLOPS

FP64 (Double Precision)

🔥 78.64 TFLOPS
No

CUDA Cores

🔥 +12,700% 16,384
128 ×2 (256)

RT Cores

No No

Architecture & Compatibility

GPU Architecture

CDNA 4.0 Tesla

SM (Streaming Multiprocessor)

No 16

PCIe Version

PCIe 5.0 x16 PCIe 2.0 x16

ML Software Support

CUDA Version

No 1.1

Clocks & Performance

Base Clock

🔥 1,000
No

Boost Clock

🔥 2,400
No

Memory Clock

🔥 +100% 2,000
1,000

Power Consumption

TDP/TGP

1400 W
🔥 -86% 197 W

Recommended PSU

1800 W
🔥 -75% 450 W

Power Connector

None 1x 6-pin + 1x 8-pin

Rendering

Texture Units (TMU)

🔥 +1,500% 1,024
64 ×2 (128)

ROP

No No

L2 Cache

🔥 16 MB
64 KB

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 March 18, 2008

Display Outputs

No outputs
2x DVI
1x HDMI

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