Alienware RTX 3090 OEM vs AMD Radeon Instinct MI355X

Comparison of Alienware RTX 3090 OEM with 24 GB GDDR6X and 10,496 cores vs AMD Radeon Instinct MI355X with 288 GB HBM3e and 16,384 cores.

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Performance Rating

H200 H200
MI325X MI325X
A100 A100

Alienware RTX 3090 OEM

Alienware RTX 3090 OEM

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

AMD Radeon Instinct MI355X

AMD Radeon Instinct MI355X

Contents:

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

Memory

Memory Size

24 GB 288 GB

Memory Type

GDDR6X HBM3e

Memory Bandwidth

936.2 GB/s 8.19 TB/s

Memory Bus Width

384 бит 8,192 бит

ML Performance

FP16 (Half Precision)

35.58 TFLOPS 629.1 TFLOPS

BF16 (Brain Float)

No No

TF32 (TensorFloat)

No No

Compute Power

FP32 (Single Precision)

35.58 TFLOPS 78.64 TFLOPS

FP64 (Double Precision)

0.556 TFLOPS 78.64 TFLOPS

CUDA Cores

10,496 16,384

RT Cores

82 No

Architecture & Compatibility

GPU Architecture

Ampere CDNA 4.0

SM (Streaming Multiprocessor)

82 No

PCIe Version

PCIe 4.0 x16 PCIe 5.0 x16

ML Software Support

CUDA Version

8.6 No

Clocks & Performance

Base Clock

1,395 1,000

Boost Clock

1,695 2,400

Memory Clock

1,219 2,000

Power Consumption

TDP/TGP

🔥 -75% 350 W
1400 W

Recommended PSU

🔥 -58% 750 W
1800 W

Power Connector

2x 8-pin None

Rendering

Texture Units (TMU)

328 1,024

ROP

82 No

L2 Cache

6 MB 32 MB

Benchmarks

MLPerf, llama2-70b-99.9 (mxfp4)

10 129 tokens/s

MLPerf, llama3.1-405b (mxfp4)

252.4 tokens/s

Additional

Slots

Triple-slot OAM Module

Release Date

Sept. 1, 2020 March 12, 2025

Display Outputs

1x HDMI 2.1
3x DisplayPort 1.4a
No outputs

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