GeForce RTX 4090 and A2 PCIe - video card comparison
GeForce RTX 4090
A2 PCIe
Architecture
Ada Lovelace
Ampere (2020−2022)
GPU code name
AD102-300-A1
GA107
Market segment
Desktop
Desktop
Release date
September 2022
November 2021
Interface
PCIe 4.0 x16
PCIe 4.0 x8
Supplementary power connectors
1x 16-pin
None
Boost clock speed
2520 MHz
1770 MHz
Core clock speed
2235 MHz
-
Manufacturing process technology
5 nm
8 nm
Number of transistors
76,300 million
8,700 million
Pipelines / CUDA cores
16384
1280
Power consumption (TDP)
450 Watt
60 Watt
Texture fill rate
1,290
70.80
Memory type
GDDR6X
GDDR6
Maximum RAM amount
24 GB
16 GB
Memory bus width
384 Bit
128 Bit
Memory clock speed
21000 MHz
12.5 GB/s
Memory bandwidth
1,008 GB/s
200.1 GB/s
Shared memory
-
-
Display Connectors
1x HDMI 2.1, 3x DisplayPort 1.4a
No outputs
HDMI
+
-
DirectX
12 Ultimate (12_2)
12 Ultimate (12_2)
CUDA
8.9
8.6
OpenCL
3.0
3.0
OpenGL
4.6
4.6
Shader Model
6.6
6.7
Vulkan
1.3
1.3