NVIDIA RTX A4000 vs AMD Radeon Instinct MI8

VS

NVIDIA RTX A4000 AMD Radeon Instinct MI8

We compared two Professional market GPUs: 16GB VRAM RTX A4000 and 4GB VRAM Radeon Instinct MI8 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA RTX A4000 's Advantages

Released 4 years and 4 months late

Boost Clock1560MHz

More VRAM (16GB vs 4GB)

2048 additional rendering cores

Lower TDP (140W vs 175W)

AMD Radeon Instinct MI8 's Advantages

Larger VRAM bandwidth (512.0GB/s vs 448.0GB/s)

Score

Benchmark

FP32 (float)

RTX A4000 +134%

19.17 TFLOPS

Radeon Instinct MI8

8.192 TFLOPS

RTX A4000

VS

Radeon Instinct MI8

Graphics Card

Apr 2021

Release Date

Dec 2016

Quadro Ampere

Generation

Radeon Instinct

Professional

Type

Professional

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

735 MHz

Base Clock

-

1560 MHz

Boost Clock

-

1750 MHz

Memory Clock

500 MHz

Memory

16GB

Memory Size

4GB

GDDR6

Memory Type

HBM

256bit

Memory Bus

4096bit

448.0GB/s

Bandwidth

512.0GB/s

Render Config

48

SM Count

-

Compute Units

64

6144

Shading Units

4096

192

TMUs

256

96

ROPs

64

192

Tensor Cores

-

48

RT Cores

-

128 KB (per SM)

L1 Cache

16 KB (per CU)

4 MB

L2 Cache

2 MB

Theoretical Performance

149.8 GPixel/s

Pixel Rate

64.00 GPixel/s

299.5 GTexel/s

Texture Rate

256.0 GTexel/s

19.17 TFLOPS

FP16 (half)

8.192 TFLOPS

19.17 TFLOPS

FP32 (float)

8.192 TFLOPS

299.5 GFLOPS

FP64 (double)

512.0 GFLOPS

Graphics Processor

GA104

GPU Name

Fiji

GA104-875-A1

GPU Variant

Fiji XT CA (215-0862120)

Ampere

Architecture

GCN 3.0

Samsung

Foundry

TSMC

8 nm

Process Size

28 nm

17.4 billion

Transistors

8.9 billion

392 mm²

Die Size

596 mm²

Board Design

140W

TDP

175W

300 W

Suggested PSU

450 W

4x DisplayPort 1.4a

Outputs

No outputs

1x 6-pin

Power Connectors

1x 8-pin

Graphics Features

12 Ultimate (12_2)

DirectX

12 (12_0)

4.6

OpenGL

4.6

3.0

OpenCL

2.1

1.3

Vulkan

1.2.170

8.6

CUDA

-

6.7

Shader Model

6.5

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