NVIDIA A40 PCIe vs AMD Radeon Pro W6800X Duo

VS

NVIDIA A40 PCIe AMD Radeon Pro W6800X Duo

We compared two Desktop platform GPUs: 48GB VRAM A40 PCIe and 32GB VRAM Radeon Pro W6800X Duo to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA A40 PCIe 's Advantages

More VRAM (48GB vs 32GB)

Larger VRAM bandwidth (695.8GB/s vs 512.0GB/s)

6912 additional rendering cores

Lower TDP (300W vs 400W)

AMD Radeon Pro W6800X Duo 's Advantages

Released 10 months late

Boost Clock has increased by 13% (1967MHz vs 1740MHz)

Score

Benchmark

FP32 (float)

A40 PCIe +147%

37.42 TFLOPS

Radeon Pro W6800X Duo

15.11 TFLOPS

Blender

A40 PCIe +179%

4170

Radeon Pro W6800X Duo

1492

A40 PCIe

VS

Radeon Pro W6800X Duo

Graphics Card

Oct 2020

Release Date

Aug 2021

Tesla

Generation

Radeon Pro Mac

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

Apple MPX

Clock Speeds

1305 MHz

Base Clock

1800 MHz

1740 MHz

Boost Clock

1967 MHz

1812 MHz

Memory Clock

2000 MHz

Memory

48GB

Memory Size

32GB

GDDR6

Memory Type

GDDR6

384bit

Memory Bus

256bit

695.8GB/s

Bandwidth

512.0GB/s

Render Config

84

SM Count

-

Compute Units

60

10752

Shading Units

3840

336

TMUs

240

112

ROPs

96

336

Tensor Cores

-

84

RT Cores

60

128 KB (per SM)

L1 Cache

128 KB per Array

6 MB

L2 Cache

4 MB

Theoretical Performance

194.9 GPixel/s

Pixel Rate

188.8 GPixel/s

584.6 GTexel/s

Texture Rate

472.1 GTexel/s

37.42 TFLOPS

FP16 (half)

30.21 TFLOPS

37.42 TFLOPS

FP32 (float)

15.11 TFLOPS

584.6 GFLOPS

FP64 (double)

944.2 GFLOPS

Graphics Processor

GA102

GPU Name

Navi 21

-

GPU Variant

Navi 21 Pro-XLA

Ampere

Architecture

RDNA 2.0

Samsung

Foundry

TSMC

8 nm

Process Size

7 nm

28.3 billion

Transistors

26.8 billion

628 mm²

Die Size

520 mm²

Board Design

300W

TDP

400W

700 W

Suggested PSU

800 W

3x DisplayPort 1.4a

Outputs

1x HDMI 2.1 4x Thunderbolt

8-pin EPS

Power Connectors

None

Graphics Features

12 Ultimate (12_2)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

3.0

OpenCL

2.1

1.3

Vulkan

1.3

8.6

CUDA

-

6.6

Shader Model

6.7

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