GeForce GTX 750 and GeForce GT 640 OEM Rebrand - video card comparison
GeForce GTX 750
GeForce GT 640 OEM Rebrand
Architecture
Maxwell (2014−2018)
Fermi 2.0 (2010−2014)
GPU code name
GM107
GF116
Market segment
Desktop
Desktop
Release date
February 2014
April 2012
Bus support
PCI Express 3.0
-
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
None
None
Boost clock speed
1085 MHz
-
Core clock speed
1020 MHz
720 MHz
CUDA cores
512
-
Floating-point performance
1,111 gflops
414.7 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
1,870 million
1,170 million
Pipelines / CUDA cores
512
144
Power consumption (TDP)
55 Watt
75 Watt
Maximum GPU temperature
95 °C
-
Texture fill rate
34.72
17.28
Memory type
GDDR5
DDR3
Maximum RAM amount
4 GB
1536 MB
Memory bus width
128 Bit
192 Bit
Memory clock speed
5.0 GB/s
1600 MHz
Memory bandwidth
80 GB/s
38.4 GB/s
Display Connectors
One Dual Link DVI-I, One Dual Link DVI-D, One mini-HDMI
2x DVI, 1x mini-HDMI
Multi monitor support
3 displays
-
HDMI
+
+
HDCP
+
-
Maximum VGA resolution
2048x1536
-
Audio input for HDMI
Internal
-
DirectX
12 (11_0)
12 (11_0)
CUDA
+
2.1
OpenCL
1.2
1.1
OpenGL
4.4
4.6
Shader Model
5.1
5.1
Vulkan
1.1.126
N/A
3D Gaming
+
-
3D Vision
+
-
3D Vision Live
+
-
Blu Ray 3D
+
-