RTX A40 and RTX A4000 - video card comparison

RTX A40

RTX A4000

Architecture

Ampere (2020−2022)

Ampere (2020−2022)

GPU code name

GA102

GA104

Market segment

Desktop

Workstation

Release date

October 2020

April 2021

Interface

PCIe 4.0 x16

PCIe 4.0 x16

Supplementary power connectors

8-pin EPS

1x 6-pin

Boost clock speed

1755 MHz

1560 MHz

Manufacturing process technology

8 nm

8 nm

Number of transistors

28,300 million

17,400 million

Pipelines / CUDA cores

10752

6144

Power consumption (TDP)

300 Watt

140 Watt

Texture fill rate

589.7

299.5

Memory type

GDDR6

GDDR6

Maximum RAM amount

48 GB

16 GB

Memory bus width

384 Bit

256 Bit

Memory clock speed

14.5 GB/s

14 GB/s

Memory bandwidth

695.8 GB/s

448.0 GB/s

Display Connectors

3x DisplayPort

4x DisplayPort 1.4a

DirectX

12 Ultimate (12_2)

12 Ultimate (12_2)

CUDA

8.6

8.6

OpenCL

2.0

3.0

OpenGL

4.6

4.6

Shader Model

6.5

6.7

Vulkan

1.2

1.3