Quadro RTX 4000 and RTX A40 - video card comparison

Quadro RTX 4000

RTX A40

Architecture

Turing (2018−2021)

Ampere (2020−2022)

GPU code name

TU104

GA102

Market segment

Workstation

Desktop

Release date

November 2018

October 2020

Interface

PCIe 3.0 x16

PCIe 4.0 x16

Supplementary power connectors

1x 8-pin

8-pin EPS

Boost clock speed

1545 MHz

1755 MHz

Core clock speed

1005 MHz

-

Manufacturing process technology

12 nm

8 nm

Number of transistors

13,600 million

28,300 million

Pipelines / CUDA cores

2304

10752

Power consumption (TDP)

160 Watt

300 Watt

Texture fill rate

222.5

589.7

Memory type

GDDR6

GDDR6

Maximum RAM amount

8 GB

48 GB

Memory bus width

256 Bit

384 Bit

Memory clock speed

13000 MHz

14.5 GB/s

Memory bandwidth

416.0 GB/s

695.8 GB/s

Display Connectors

3x DisplayPort, 1x USB Type-C

3x DisplayPort

DirectX

12 Ultimate (12_1)

12 Ultimate (12_2)

CUDA

7.5

8.6

OpenCL

1.2

2.0

OpenGL

4.6

4.6

Shader Model

6.5

6.5

Vulkan

1.2.131

1.2