GeForce 810M and GeForce GT 640 OEM - video card comparison
GeForce 810M
GeForce GT 640 OEM
Architecture
Fermi 2.0 (2010−2014)
Kepler (2012−2018)
GPU code name
GF117
GK107
Market segment
Desktop
Desktop
Release date
March 2014
April 2012
Interface
PCIe 2.0 x16
PCIe 3.0 x16
Supplementary power connectors
-
None
Boost clock speed
950 MHz
-
Core clock speed
738 MHz
797 MHz
Floating-point performance
141.7 gflops
612.1 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
585 million
1,270 million
Pipelines / CUDA cores
48
384
Power consumption (TDP)
15 Watt
50 Watt
Texture fill rate
5.904
25.50
Memory type
DDR3
DDR3
Maximum RAM amount
1 GB
2 GB
Memory bus width
64 Bit
128 Bit
Memory clock speed
1800 MHz
1782 MHz
Memory bandwidth
14.4 GB/s
28.51 GB/s
Display Connectors
No outputs
1x DVI, 1x HDMI, 1x DisplayPort
HDMI
-
+
DirectX
12 (11_0)
12 (11_0)
CUDA
2.1
3.0
OpenCL
1.1
1.2
OpenGL
4.6
4.6
Shader Model
5.1
5.1
Vulkan
N/A
1.1.126