GeForce GT 640 and UHD Graphics G1 - video card comparison
GeForce GT 640
UHD Graphics G1
Architecture
Kepler (2012−2018)
Generation 11.0 (2019−2020)
GPU code name
GK107
Ice Lake GT1
Market segment
Desktop
Desktop
Release date
June 2012
May 2019
Interface
PCIe 3.0 x16
PCIe 3.0 x1
Supplementary power connectors
None
-
Boost clock speed
-
900 MHz
Core clock speed
902 MHz
-
Floating-point performance
692.7 gflops
-
Manufacturing process technology
28 nm
10 nm
Number of transistors
1,270 million
-
Pipelines / CUDA cores
384
256
Power consumption (TDP)
65 Watt
15 Watt
Texture fill rate
28.86
14.40
Memory type
DDR3
System Shared
Maximum RAM amount
2 GB
System Shared
Memory bus width
128 Bit
System Shared
Memory clock speed
1782 MHz
System Shared
Memory bandwidth
28.51 GB/s
-
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
No outputs
HDMI
+
-
DirectX
12 (11_0)
12 (12_1)
CUDA
3.0
-
OpenCL
1.2
2.1
OpenGL
4.6
4.6
Shader Model
5.1
6.4
Vulkan
1.1.126
1.1.97