Quadro K620 and RTX A400 - video card comparison

Quadro K620

RTX A400

Architecture

Maxwell (2014−2018)

Ampere (2020−2022)

GPU code name

GM107

GA107

Market segment

Workstation

Desktop

Release date

July 2014

April 2024

Interface

PCIe 2.0 x16

PCIe 4.0 x8

Supplementary power connectors

None

None

Boost clock speed

1124 MHz

1762 MHz

Core clock speed

1058 MHz

-

Floating-point performance

863.2 gflops

-

Manufacturing process technology

28 nm

8 nm

Number of transistors

1,870 million

8,700 million

Pipelines / CUDA cores

384

768

Power consumption (TDP)

41 Watt

50 Watt

Texture fill rate

26.98

42.29

Memory type

128 Bit

GDDR6

Maximum RAM amount

2 GB

4 GB

Memory bus width

128 Bit

64 Bit

Memory clock speed

1800 MHz

12 GB/s

Memory bandwidth

Up to 29 GB/s

96 GB/s

Display Connectors

DVI-I DP

4x mini-DisplayPort 1.4a

Number of simultaneous displays

4

-

DirectX

12

12 Ultimate (12_2)

CUDA

5.0

8.6

OpenCL

1.2

3.0

OpenGL

4.5

4.6

Shader Model

5

6.7

Vulkan

+

1.3

3D Vision Pro

+

-

Mosaic

+

-

nView Desktop Management

+

-