RTX A4000 and A40 PCIe - video card comparison
RTX A4000
A40 PCIe
Architecture
Ampere (2020−2022)
Ampere (2020−2022)
GPU code name
GA104
GA102
Market segment
Workstation
Desktop
Release date
April 2021
October 2020
Interface
PCIe 4.0 x16
PCIe 4.0 x16
Supplementary power connectors
1x 6-pin
8-pin EPS
Boost clock speed
1560 MHz
1755 MHz
Manufacturing process technology
8 nm
8 nm
Number of transistors
17,400 million
28,300 million
Pipelines / CUDA cores
6144
10752
Power consumption (TDP)
140 Watt
300 Watt
Texture fill rate
299.5
589.7
Memory type
GDDR6
GDDR6
Maximum RAM amount
16 GB
48 GB
Memory bus width
256 Bit
384 Bit
Memory clock speed
14 GB/s
14.5 GB/s
Memory bandwidth
448.0 GB/s
695.8 GB/s
Display Connectors
4x DisplayPort 1.4a
3x DisplayPort
DirectX
12 Ultimate (12_2)
12 Ultimate (12_2)
CUDA
8.6
8.6
OpenCL
3.0
2.0
OpenGL
4.6
4.6
Shader Model
6.7
6.5
Vulkan
1.3
1.2