GeForce GT 640 and GeForce GT 740M - video card comparison
Passmark - benchmark score GeForce GT 640 vs GeForce GT 740M
GeForce GT 640
1209
GeForce GT 740M
816
GeForce GT 640
GeForce GT 740M
Architecture
Kepler (2012−2018)
Kepler (2012−2018)
GPU code name
GK107
N14P-GV2, ...
Market segment
Desktop
Laptop
Release date
June 2012
March 2013
Bus support
-
PCI Express 3.0
Interface
PCIe 3.0 x16
PCIe 3.0 x8
Supplementary power connectors
None
-
Boost clock speed
-
980 MHz
Core clock speed
902 MHz
810 MHz
Floating-point performance
692.7 gflops
752.6 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
1,270 million
915 million
Pipelines / CUDA cores
384
384
Power consumption (TDP)
65 Watt
45 Watt
Texture fill rate
28.86
31.36
Memory type
DDR3
DDR3
Maximum RAM amount
2 GB
2 GB
Memory bus width
128 Bit
64/128 Bit
Memory clock speed
1782 MHz
1600 - 1800 MHz
Memory bandwidth
28.51 GB/s
14.4 GB/s
Shared memory
-
-
Standard memory configuration
-
DDR3/GDDR5
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
No outputs
eDP 1.2 signal support
-
Up to 3840x2160
LVDS signal support
-
Up to 1920x1200
VGA аnalog display support
-
Up to 2048x1536
DisplayPort Multimode (DP++) support
-
Up to 3840x2160
HDCP content protection
-
+
HDMI
+
+
7.1 channel HD audio on HDMI
-
+
DirectX
12 (11_0)
12 API
CUDA
3.0
+
OpenCL
1.2
1.1
OpenGL
4.6
4.5
Shader Model
5.1
5.1
Vulkan
1.1.126
1.1.126
3D Vision / 3DTV Play
-
+
Blu-Ray 3D Support
-
+
H.264, VC1, MPEG2 1080p video decoder
-
+
Optimus
-
+
TrueHD and DTS-HD audio bitstreaming
-
+