NVIDIA RTX A4000 vs AMD Radeon Instinct MI250X

VS

NVIDIA RTX A4000 AMD Radeon Instinct MI250X

We compared two Professional market GPUs: 16GB VRAM RTX A4000 and 128GB VRAM Radeon Instinct MI250X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA RTX A4000 's Advantages

Lower TDP (140W vs 500W)

AMD Radeon Instinct MI250X 's Advantages

Released 7 months late

Boost Clock has increased by 9% (1700MHz vs 1560MHz)

More VRAM (128GB vs 16GB)

Larger VRAM bandwidth (3277GB/s vs 448.0GB/s)

7936 additional rendering cores

Score

Benchmark

FP32 (float)

RTX A4000

19.17 TFLOPS

Radeon Instinct MI250X +149%

47.87 TFLOPS

RTX A4000

VS

Radeon Instinct MI250X

Graphics Card

Apr 2021

Release Date

Nov 2021

Quadro Ampere

Generation

Radeon Instinct

Professional

Type

Professional

PCIe 4.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

735 MHz

Base Clock

1000 MHz

1560 MHz

Boost Clock

1700 MHz

1750 MHz

Memory Clock

1600 MHz

Memory

16GB

Memory Size

128GB

GDDR6

Memory Type

HBM2e

256bit

Memory Bus

8192bit

448.0GB/s

Bandwidth

3277GB/s

Render Config

48

SM Count

-

Compute Units

220

6144

Shading Units

14080

192

TMUs

880

96

ROPs

0

192

Tensor Cores

-

48

RT Cores

-

128 KB (per SM)

L1 Cache

16 KB (per CU)

4 MB

L2 Cache

16 MB

Theoretical Performance

149.8 GPixel/s

Pixel Rate

0 MPixel/s

299.5 GTexel/s

Texture Rate

1496 GTexel/s

19.17 TFLOPS

FP16 (half)

383.0 TFLOPS

19.17 TFLOPS

FP32 (float)

47.87 TFLOPS

299.5 GFLOPS

FP64 (double)

47.87 TFLOPS

Graphics Processor

GA104

GPU Name

Aldebaran

GA104-875-A1

GPU Variant

Aldebaran XT

Ampere

Architecture

CDNA 2.0

Samsung

Foundry

TSMC

8 nm

Process Size

6 nm

17.4 billion

Transistors

58.2 billion

392 mm²

Die Size

Unknown

Board Design

140W

TDP

500W

300 W

Suggested PSU

900 W

4x DisplayPort 1.4a

Outputs

No outputs

1x 6-pin

Power Connectors

2x 8-pin

Graphics Features

12 Ultimate (12_2)

DirectX

N/A

4.6

OpenGL

N/A

3.0

OpenCL

3.0

1.3

Vulkan

N/A

8.6

CUDA

-

6.7

Shader Model

N/A

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