T400 and RTX A400 - video card comparison

T400

RTX A400

Architecture

Turing (2018−2021)

Ampere (2020−2022)

GPU code name

TU117

GA107

Market segment

Desktop

Desktop

Release date

May 2021

April 2024

Interface

PCIe 3.0 x16

PCIe 4.0 x8

Supplementary power connectors

None

None

Boost clock speed

1425 MHz

1762 MHz

Manufacturing process technology

12 nm

8 nm

Number of transistors

4,700 million

8,700 million

Pipelines / CUDA cores

384

768

Power consumption (TDP)

30 Watt

50 Watt

Texture fill rate

34.20

42.29

Memory type

GDDR6

GDDR6

Maximum RAM amount

2 GB

4 GB

Memory bus width

64 Bit

64 Bit

Memory clock speed

10 GB/s

12 GB/s

Memory bandwidth

80 GB/s

96 GB/s

Display Connectors

3x mini-DisplayPort

4x mini-DisplayPort 1.4a

DirectX

12 (12_1)

12 Ultimate (12_2)

CUDA

7.5

8.6

OpenCL

3.0

3.0

OpenGL

4.6

4.6

Shader Model

6.6

6.7

Vulkan

1.2

1.3