GeForce GT 640 OEM and Caicos - video card comparison
GeForce GT 640 OEM
Caicos
Architecture
Kepler (2012−2018)
TeraScale 2 (2009−2015)
GPU code name
GK107
Caicos
Market segment
Desktop
Desktop
Release date
April 2012
-
Interface
PCIe 3.0 x16
-
Supplementary power connectors
None
-
Core clock speed
797 MHz
-
Floating-point performance
612.1 gflops
-
Manufacturing process technology
28 nm
40 nm
Number of transistors
1,270 million
370 million
Pipelines / CUDA cores
384
160
Power consumption (TDP)
50 Watt
-
Texture fill rate
25.50
-
Memory type
DDR3
-
Maximum RAM amount
2 GB
-
Memory bus width
128 Bit
-
Memory clock speed
1782 MHz
-
Memory bandwidth
28.51 GB/s
-
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
-
HDMI
+
-
DirectX
12 (11_0)
11.2 (11_0)
CUDA
3.0
-
OpenCL
1.2
1.2
OpenGL
4.6
4.4
Shader Model
5.1
5.0
Vulkan
1.1.126
N/A