RTX A40 and GeForce RTX 4090 Mobile - video card comparison

RTX A40

GeForce RTX 4090 Mobile

Architecture

Ampere (2020−2022)

Ada Lovelace

GPU code name

GA102

GN21-X11

Market segment

Desktop

Laptop

Release date

October 2020

January 2023

Interface

PCIe 4.0 x16

Supplementary power connectors

8-pin EPS

Boost clock speed

1755 MHz

2040 MHz

Manufacturing process technology

8 nm

5 nm

Number of transistors

28,300 million

45,900 million

Pipelines / CUDA cores

10752

9728

Power consumption (TDP)

300 Watt

150 Watt (80 - 150 Watt TGP)

Texture fill rate

589.7

515.3

Memory type

GDDR6

Maximum RAM amount

48 GB

16 GB

Memory bus width

384 Bit

256 Bit

Memory clock speed

14.5 GB/s

20000 MHz

Memory bandwidth

695.8 GB/s

576.0 GB/s

Shared memory

Display Connectors

3x DisplayPort

Portable Device Dependent

DirectX

12 Ultimate (12_2)

CUDA

8.6

8.9

OpenCL

2.0

3.0

OpenGL

4.6

Shader Model

6.5

6.7

Vulkan

1.2

1.3