GeForce GTX 750 Ti and GeForce GT 640 - video card comparison
Passmark - benchmark score GeForce GTX 750 Ti vs GeForce GT 640
GeForce GTX 750 Ti
4020
GeForce GT 640
1209
GeForce GTX 750 Ti
GeForce GT 640
Architecture
Maxwell (2014−2018)
Kepler (2012−2018)
GPU code name
GM107
GK107
Market segment
Desktop
Desktop
Release date
February 2014
June 2012
Bus support
PCI Express 3.0
-
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
None
None
Boost clock speed
1085 MHz
-
Core clock speed
1020 MHz
902 MHz
CUDA cores
640
-
Floating-point performance
1,389 gflops
692.7 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
1,870 million
1,270 million
Pipelines / CUDA cores
640
384
Power consumption (TDP)
60 Watt
65 Watt
Texture fill rate
43.40
28.86
Memory type
GDDR5
DDR3
Maximum RAM amount
4 GB
2 GB
Memory bus width
128 Bit
128 Bit
Memory clock speed
5.4 GB/s
1782 MHz
Memory bandwidth
86.4 GB/s
28.51 GB/s
Shared memory
-
-
Display Connectors
One Dual Link DVI-I, One Dual Link DVI-D, One mini-HDMI
1x DVI, 1x HDMI, 1x DisplayPort
Multi monitor support
4 displays
-
HDMI
+
+
HDCP
+
-
Maximum VGA resolution
2048x1536
-
Audio input for HDMI
Internal
-
DirectX
12 (11_0)
12 (11_0)
CUDA
+
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
3D Gaming
+
-
3D Vision
+
-
3D Vision Live
+
-
Blu Ray 3D
+
-