RTX A40 and GeForce RTX 4090 Ti - video card comparison
RTX A40
GeForce RTX 4090 Ti
Architecture
Ampere (2020−2022)
Ada Lovelace
GPU code name
GA102
AD102
Market segment
Desktop
Desktop
Release date
October 2020
2023
Interface
PCIe 4.0 x16
PCIe 4.0 x16
Supplementary power connectors
8-pin EPS
2x 16-pin
Boost clock speed
1755 MHz
2565 MHz
Manufacturing process technology
8 nm
5 nm
Number of transistors
28,300 million
76,300 million
Pipelines / CUDA cores
10752
18176
Power consumption (TDP)
300 Watt
600 Watt
Texture fill rate
589.7
1,457
Memory type
GDDR6
GDDR6X
Maximum RAM amount
48 GB
24 GB
Memory bus width
384 Bit
384 Bit
Memory clock speed
14.5 GB/s
24 GB/s
Memory bandwidth
695.8 GB/s
1,152 GB/s
Display Connectors
3x DisplayPort
1x HDMI 2.1, 3x DisplayPort 1.4a
HDMI
-
+
DirectX
12 Ultimate (12_2)
12 Ultimate (12_2)
CUDA
8.6
8.9
OpenCL
2.0
3.0
OpenGL
4.6
4.6
Shader Model
6.5
6.7
Vulkan
1.2
1.3