GeForce RTX 4090 and A800 PCIe 40 GB - video card comparison
GeForce RTX 4090
A800 PCIe 40 GB
Architecture
Ada Lovelace
Ampere (2020−2022)
GPU code name
AD102-300-A1
GA100
Market segment
Desktop
Desktop
Release date
September 2022
November 2022
Interface
PCIe 4.0 x16
PCIe 4.0 x16
Supplementary power connectors
1x 16-pin
8-pin EPS
Boost clock speed
2520 MHz
1410 MHz
Core clock speed
2235 MHz
-
Manufacturing process technology
5 nm
7 nm
Number of transistors
76,300 million
54,200 million
Pipelines / CUDA cores
16384
6912
Power consumption (TDP)
450 Watt
250 Watt
Texture fill rate
1,290
609.1
Memory type
GDDR6X
HBM2e
Maximum RAM amount
24 GB
40 GB
Memory bus width
384 Bit
5120 Bit
Memory clock speed
21000 MHz
2.4 GB/s
Memory bandwidth
1,008 GB/s
1,555 GB/s
Shared memory
-
-
Display Connectors
1x HDMI 2.1, 3x DisplayPort 1.4a
No outputs
HDMI
+
-
DirectX
12 Ultimate (12_2)
N/A
CUDA
8.9
8.0
OpenCL
3.0
3.0
OpenGL
4.6
N/A
Shader Model
6.6
N/A
Vulkan
1.3
N/A