RTX A40 and T400 4 GB - video card comparison

RTX A40

T400 4 GB

Architecture

Ampere (2020−2022)

Turing (2018−2021)

GPU code name

GA102

TU117

Market segment

Desktop

Desktop

Release date

October 2020

May 2021

Interface

PCIe 4.0 x16

PCIe 3.0 x16

Supplementary power connectors

8-pin EPS

None

Boost clock speed

1755 MHz

1425 MHz

Manufacturing process technology

8 nm

12 nm

Number of transistors

28,300 million

4,700 million

Pipelines / CUDA cores

10752

384

Power consumption (TDP)

300 Watt

30 Watt

Texture fill rate

589.7

34.20

Memory type

GDDR6

GDDR6

Maximum RAM amount

48 GB

4 GB

Memory bus width

384 Bit

64 Bit

Memory clock speed

14.5 GB/s

10 GB/s

Memory bandwidth

695.8 GB/s

80 GB/s

Display Connectors

3x DisplayPort

3x mini-DisplayPort

DirectX

12 Ultimate (12_2)

12 (12_1)

CUDA

8.6

7.5

OpenCL

2.0

3.0

OpenGL

4.6

4.6

Shader Model

6.5

6.6

Vulkan

1.2

1.2