AMD Radeon Instinct MI250X vs AMD Instinct MI300A

VS

AMD Radeon Instinct MI250X

AMD Instinct MI300A

We compared two Professional market GPUs: 128GB VRAM Radeon Instinct MI250X and 128GB VRAM AMD Instinct MI300A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Instinct MI250X 's Advantages

Lower TDP (500W vs 760W)

AMD Instinct MI300A 's Advantages

Released 2 years and 1 months late

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

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

512 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon Instinct MI250X

47.87 TFLOPS

AMD Instinct MI300A +156%

122.6 TFLOPS

Radeon Instinct MI250X

VS

AMD Instinct MI300A

Graphics Card

Nov 2021

Release Date

Dec 2023

Radeon Instinct

Generation

Instinct

Professional

Type

Professional

PCIe 4.0 x16

Bus Interface

PCIe 5.0 x16

Clock Speeds

1000 MHz

Base Clock

1000 MHz

1700 MHz

Boost Clock

2100 MHz

1600 MHz

Memory Clock

5200 MHz

Memory

128GB

Memory Size

128GB

HBM2e

Memory Type

HBM3

8192bit

Memory Bus

8192bit

3277GB/s

Bandwidth

5300GB/s

Render Config

220

Compute Units

228

-

14080

Shading Units

14592

880

TMUs

880

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

1496 GTexel/s

383.0 TFLOPS

FP16 (half)

980.6 TFLOPS

47.87 TFLOPS

FP32 (float)

122.6 TFLOPS

47.87 TFLOPS

FP64 (double)

61.3 TFLOPS

Board Design

500W

TDP

760W

900 W

Suggested PSU

1000 W

No outputs

Outputs

No outputs

2x 8-pin

Power Connectors

None

Graphics Processor

Aldebaran

GPU Name

MI300

Aldebaran XT

GPU Variant

-

CDNA 2.0

Architecture

CDNA 3.0

TSMC

Foundry

TSMC

6 nm

Process Size

5 nm

58.2 billion

Transistors

146 billion

Unknown

Die Size

1017 mm²

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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