GeForce GT 640 and Radeon RX 5800 XT - video card comparison
GeForce GT 640
Radeon RX 5800 XT
Architecture
Kepler (2012−2018)
RDNA 2.0 (2020−2022)
GPU code name
GK107
Navi 23
Market segment
Desktop
Desktop
Release date
June 2012
-
Interface
PCIe 3.0 x16
PCIe 4.0 x16
Supplementary power connectors
None
2x 8-pin
Boost clock speed
-
1775 MHz
Core clock speed
902 MHz
-
Floating-point performance
692.7 gflops
-
Manufacturing process technology
28 nm
7 nm
Number of transistors
1,270 million
-
Pipelines / CUDA cores
384
3328
Power consumption (TDP)
65 Watt
275 Watt
Texture fill rate
28.86
369.2
Memory type
DDR3
GDDR6
Maximum RAM amount
2 GB
8 GB
Memory bus width
128 Bit
256 Bit
Memory clock speed
1782 MHz
14000 MHz
Memory bandwidth
28.51 GB/s
448.0 GB/s
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
1x HDMI, 3x DisplayPort
HDMI
+
+
DirectX
12 (11_0)
12 Ultimate (12_1)
CUDA
3.0
-
OpenCL
1.2
-
OpenGL
4.6
4.6
Shader Model
5.1
-
Vulkan
1.1.126
-