GeForce GT 740 and GeForce GT 640 OEM - video card comparison
GeForce GT 740
GeForce GT 640 OEM
Architecture
Kepler (2012−2018)
Kepler (2012−2018)
GPU code name
GK107
GK107
Market segment
Desktop
Desktop
Release date
May 2014
April 2012
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
1x 6-pin
None
Core clock speed
993 MHz
797 MHz
Floating-point performance
762.6 gflops
612.1 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
1,270 million
1,270 million
Pipelines / CUDA cores
384
384
Power consumption (TDP)
64 Watt
50 Watt
Texture fill rate
31.78
25.50
Memory type
GDDR5
DDR3
Maximum RAM amount
4 GB
2 GB
Memory bus width
128 Bit
128 Bit
Memory clock speed
5012 MHz
1782 MHz
Memory bandwidth
80.19 GB/s
28.51 GB/s
Display Connectors
2x DVI, 1x mini-HDMI
1x DVI, 1x HDMI, 1x DisplayPort
HDMI
+
+
DirectX
12 (11_0)
12 (11_0)
CUDA
3.0
3.0
OpenCL
1.2
1.2
OpenGL
4.6
4.6
Shader Model
5.1
5.1
Vulkan
1.1.126
1.1.126