AMD Radeon HD 8990 OEM vs AMD Radeon Instinct MI355X

Comparison of AMD Radeon HD 8990 OEM with 3 GB GDDR5 and 2,048 cores vs AMD Radeon Instinct MI355X with 288 GB HBM3e and 16,384 cores.

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Performance Rating

AMD Radeon Instinct MI355X outperforms AMD Radeon HD 8990 OEM by 2,572.0% in the overall GPU ARK performance rating

A100 A100
H200 H200
MI325X MI325X

AMD Radeon HD 8990 OEM

3.5

AMD Radeon HD 8990 OEM

3.5
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

3 ГБ ×2 (6 ГБ)
🔥 +9,500% 288 ГБ

Memory Type

GDDR5 HBM3e

Memory Bandwidth

288.0 GB/s ×2 (576 GB/s)
🔥 8.19 TB/s

Memory Bus Width

384 бит ×2 (768 бит) 8,192 бит

ML Performance

FP16 (Half Precision)

No
🔥 629.1 TFLOPS

BF16 (Brain Float)

No No

TF32 (TensorFloat)

No No

Compute Power

FP32 (Single Precision)

4.096 TFLOPS
🔥 +1,820% 78.64 TFLOPS

FP64 (Double Precision)

No
🔥 78.64 TFLOPS

CUDA Cores

2,048 ×2 (4096)
🔥 +700% 16,384

RT Cores

No No

Architecture & Compatibility

GPU Architecture

GCN 1.0 CDNA 4.0

SM (Streaming Multiprocessor)

No No

PCIe Version

PCIe 3.0 x16 PCIe 5.0 x16

ML Software Support

CUDA Version

No No

Clocks & Performance

Base Clock

950
🔥 +5% 1,000

Boost Clock

1,000
🔥 +140% 2,400

Memory Clock

1,500
🔥 +33% 2,000

Power Consumption

TDP/TGP

🔥 -73% 375 W
1400 W

Recommended PSU

🔥 -58% 750 W
1800 W

Power Connector

2x 8-pin None

Rendering

Texture Units (TMU)

128 ×2 (256)
🔥 +700% 1,024

ROP

No No

L2 Cache

768 KB
🔥 16 MB

Benchmarks

MLPerf, llama2-70b-99.9 (mxfp4)

10 129 tokens/s

MLPerf, llama3.1-405b (mxfp4)

252.4 tokens/s

Additional

Slots

Dual-slot OAM Module

Release Date

April 24, 2013 July 15, 2025

Display Outputs

1x DVI
4x mini-DisplayPort 1.2
No outputs

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