GeForce GTX 750 Ti and GeForce GT 640M LE - video card comparison
Passmark - benchmark score GeForce GTX 750 Ti vs GeForce GT 640M LE
GeForce GTX 750 Ti
4020
GeForce GT 640M LE
720
GeForce GTX 750 Ti
GeForce GT 640M LE
Architecture
Maxwell (2014−2018)
Fermi / Kepler (2012)
GPU code name
GM107
N13P-LP
Market segment
Desktop
Laptop
Release date
February 2014
March 2012
Bus support
PCI Express 3.0
PCI Express 2.0, PCI Express 3.0
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
None
-
Boost clock speed
1085 MHz
-
Core clock speed
1020 MHz
Up to 500 MHz
CUDA cores
640
Up to 384
Floating-point performance
1,389 gflops
384.0 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
1,870 million
585 million
Pipelines / CUDA cores
640
384
Power consumption (TDP)
60 Watt
20 Watt
Texture fill rate
43.40
Up to 16.0 billion/sec
Memory type
GDDR5
DDR3\DDR5
Maximum RAM amount
4 GB
2 GB
Memory bus width
128 Bit
128bit
Memory clock speed
5.4 GB/s
1800 - 4000 MHz
Memory bandwidth
86.4 GB/s
Up to 28.8 GB/s
Shared memory
-
-
Display Connectors
One Dual Link DVI-I, One Dual Link DVI-D, One mini-HDMI
No outputs
Multi monitor support
4 displays
-
HDMI
+
+
HDCP
+
+
Maximum VGA resolution
2048x1536
Up to 2048x1536
Audio input for HDMI
Internal
-
DirectX
12 (11_0)
12 API
CUDA
+
+
OpenCL
1.2
1.1
OpenGL
4.6
4.5
Shader Model
5.1
5.1
Vulkan
1.1.126
N/A
3D Blu-Ray
-
+
3D Gaming
+
-
3D Vision
+
-
3D Vision Live
+
-
Blu Ray 3D
+
-
Optimus
-
+