AMD Instinct MI300X vs AMD Radeon Instinct MI250

VS

AMD Instinct MI300X

AMD Radeon Instinct MI250

We compared two Professional market GPUs: 192GB VRAM AMD Instinct MI300X and 128GB VRAM Radeon Instinct MI250 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Instinct MI300X 's Advantages

Released 2 years and 1 months late

Boost Clock has increased by 24% (2100MHz vs 1700MHz)

More VRAM (192GB vs 128GB)

Larger VRAM bandwidth (5300GB/s vs 3277GB/s)

6144 additional rendering cores

AMD Radeon Instinct MI250 's Advantages

Lower TDP (500W vs 750W)

Score

Benchmark

FP32 (float)

AMD Instinct MI300X +261%

163.4 TFLOPS

Radeon Instinct MI250

45.26 TFLOPS

AMD Instinct MI300X

VS

Radeon Instinct MI250

Graphics Card

Dec 2023

Release Date

Nov 2021

Instinct

Generation

Radeon Instinct

Professional

Type

Professional

PCIe 5.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

1000 MHz

Base Clock

1000 MHz

2100 MHz

Boost Clock

1700 MHz

5200 MHz

Memory Clock

1600 MHz

Memory

192GB

Memory Size

128GB

HBM3

Memory Type

HBM2e

8192bit

Memory Bus

8192bit

5300GB/s

Bandwidth

3277GB/s

Render Config

304

Compute Units

208

-

19456

Shading Units

13312

880

TMUs

832

0

ROPs

0

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

16 MB

L2 Cache

16 MB

-

Theoretical Performance

0 MPixel/s

Pixel Rate

0 MPixel/s

1496 GTexel/s

Texture Rate

1414 GTexel/s

1300 TFLOPS

FP16 (half)

362.1 TFLOPS

163.4 TFLOPS

FP32 (float)

45.26 TFLOPS

81.7 TFLOPS

FP64 (double)

45.26 TFLOPS

Board Design

750W

TDP

500W

1000 W

Suggested PSU

900 W

No outputs

Outputs

No outputs

None

Power Connectors

2x 8-pin

Graphics Processor

MI300

GPU Name

Aldebaran

-

GPU Variant

Aldebaran

CDNA 3.0

Architecture

CDNA 2.0

TSMC

Foundry

TSMC

5 nm

Process Size

6 nm

146 billion

Transistors

58.2 billion

1017 mm²

Die Size

Unknown

Graphics Features

N/A

DirectX

N/A

OpenGL

N/A

3.0

OpenCL

3.0

N/A

Vulkan

N/A

-

N/A

Shader Model

N/A

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