AMD Radeon Instinct MI6 vs NVIDIA RTX A4000

VS

AMD Radeon Instinct MI6

NVIDIA RTX A4000

We compared two Professional market GPUs: 8GB VRAM Radeon Instinct MI6 and 16GB VRAM RTX A4000 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 Clock has increased by 27% (1560MHz vs 1233MHz)

More VRAM (16GB vs 8GB)

Larger VRAM bandwidth (448.0GB/s vs 224.0GB/s)

3840 additional rendering cores

Lower TDP (140W vs 150W)

Score

Benchmark

FP32 (float)

Radeon Instinct MI6

5.682 TFLOPS

RTX A4000 +237%

19.17 TFLOPS

Radeon Instinct MI6

VS

RTX A4000

Graphics Card

Dec 2016

Release Date

Apr 2021

Radeon Instinct

Generation

Quadro Ampere

Professional

Type

Professional

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

1120 MHz

Base Clock

735 MHz

1233 MHz

Boost Clock

1560 MHz

1750 MHz

Memory Clock

1750 MHz

Memory

8GB

Memory Size

16GB

GDDR5

Memory Type

GDDR6

256bit

Memory Bus

256bit

224.0GB/s

Bandwidth

448.0GB/s

Render Config

36

Compute Units

-

SM Count

48

2304

Shading Units

6144

144

TMUs

192

32

ROPs

96

-

Tensor Cores

192

-

RT Cores

48

16 KB (per CU)

L1 Cache

128 KB (per SM)

2 MB

L2 Cache

4 MB

-

Theoretical Performance

39.46 GPixel/s

Pixel Rate

149.8 GPixel/s

177.6 GTexel/s

Texture Rate

299.5 GTexel/s

5.682 TFLOPS

FP16 (half)

19.17 TFLOPS

5.682 TFLOPS

FP32 (float)

19.17 TFLOPS

355.1 GFLOPS

FP64 (double)

299.5 GFLOPS

Board Design

150W

TDP

140W

450 W

Suggested PSU

300 W

No outputs

Outputs

4x DisplayPort 1.4a

1x 6-pin

Power Connectors

1x 6-pin

Graphics Processor

Ellesmere

GPU Name

GA104

Ellesmere XT

GPU Variant

GA104-875-A1

GCN 4.0

Architecture

Ampere

GlobalFoundries

Foundry

Samsung

14 nm

Process Size

8 nm

5.7 billion

Transistors

17.4 billion

232 mm²

Die Size

392 mm²

Graphics Features

12 (12_0)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.1

OpenCL

3.0

1.2

Vulkan

1.3

-

CUDA

8.6

6.4

Shader Model

6.7

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