GeForce GTX 560 Ti and GeForce GT 640 Rev. 2 - video card comparison
GeForce GTX 560 Ti
GeForce GT 640 Rev. 2
Architecture
Fermi (2010−2014)
Kepler 2.0 (2013−2015)
GPU code name
GF114
GK208
Market segment
Desktop
Desktop
Release date
January 2011
May 2013
Interface
PCIe 2.0 x16
PCIe 2.0 x8
Supplementary power connectors
2x 6-pin
None
Core clock speed
822 MHz
1046 MHz
Floating-point performance
1,263.4 gflops
803.3 gflops
Manufacturing process technology
40 nm
28 nm
Number of transistors
1,950 million
915 million
Pipelines / CUDA cores
384
384
Power consumption (TDP)
170 Watt
49 Watt
Texture fill rate
52.67
33.47
Memory type
GDDR5
GDDR5
Maximum RAM amount
1 GB
1 GB
Memory bus width
256 Bit
64 Bit
Memory clock speed
2004 MHz
5008 MHz
Memory bandwidth
128.3 GB/s
40.06 GB/s
Display Connectors
2x DVI, 1x mini-HDMI
1x DVI, 1x HDMI, 1x VGA
HDMI
+
+
DirectX
12 (11_0)
12 (11_0)
CUDA
2.1
3.5
OpenCL
1.1
1.2
OpenGL
4.6
4.6
Shader Model
5.1
5.1
Vulkan
N/A
1.1.126