AMD Radeon Instinct MI8 vs AMD Instinct MI300X

VS

AMD Radeon Instinct MI8 AMD Instinct MI300X

We compared two Professional market GPUs: 4GB VRAM Radeon Instinct MI8 and 192GB VRAM AMD Instinct MI300X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Instinct MI8 's Advantages

Lower TDP (175W vs 750W)

AMD Instinct MI300X 's Advantages

Released 7 years late

Boost Clock2100MHz

More VRAM (192GB vs 4GB)

Larger VRAM bandwidth (5300GB/s vs 512.0GB/s)

15360 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon Instinct MI8

8.192 TFLOPS

AMD Instinct MI300X +1894%

163.4 TFLOPS

Radeon Instinct MI8

VS

AMD Instinct MI300X

Graphics Card

Dec 2016

Release Date

Dec 2023

Radeon Instinct

Generation

Instinct

Professional

Type

Professional

PCIe 3.0 x16

Bus Interface

PCIe 5.0 x16

Clock Speeds

-

Base Clock

1000 MHz

-

Boost Clock

2100 MHz

500 MHz

Memory Clock

5200 MHz

Memory

4GB

Memory Size

192GB

HBM

Memory Type

HBM3

4096bit

Memory Bus

8192bit

512.0GB/s

Bandwidth

5300GB/s

Render Config

-

SM Count

-

64

Compute Units

304

4096

Shading Units

19456

256

TMUs

880

64

ROPs

0

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

2 MB

L2 Cache

16 MB

Theoretical Performance

64.00 GPixel/s

Pixel Rate

0 MPixel/s

256.0 GTexel/s

Texture Rate

1496 GTexel/s

8.192 TFLOPS

FP16 (half)

1300 TFLOPS

8.192 TFLOPS

FP32 (float)

163.4 TFLOPS

512.0 GFLOPS

FP64 (double)

81.7 TFLOPS

Graphics Processor

Fiji

GPU Name

MI300

Fiji XT CA (215-0862120)

GPU Variant

-

GCN 3.0

Architecture

CDNA 3.0

TSMC

Foundry

TSMC

28 nm

Process Size

5 nm

8.9 billion

Transistors

146 billion

596 mm²

Die Size

1017 mm²

Board Design

175W

TDP

750W

450 W

Suggested PSU

1000 W

No outputs

Outputs

No outputs

1x 8-pin

Power Connectors

None

Graphics Features

12 (12_0)

DirectX

N/A

4.6

OpenGL

N/A

2.1

OpenCL

3.0

1.2.170

Vulkan

N/A

-

CUDA

-

6.5

Shader Model

N/A

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