GeForce GT 640 and Radeon HD 7750M - video card comparison
Passmark - benchmark score GeForce GT 640 vs Radeon HD 7750M
GeForce GT 640
1210
Radeon HD 7750M
1227
GeForce GT 640
Radeon HD 7750M
Architecture
Kepler (2012−2018)
GCN (2011−2017)
GPU code name
GK107
Lombok XL
Market segment
Desktop
Laptop
Release date
June 2012
April 2012
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
None
-
Core clock speed
902 MHz
575 MHz
Floating-point performance
692.7 gflops
588.8 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
1,270 million
1,500 million
Pipelines / CUDA cores
384
512
Power consumption (TDP)
65 Watt
28 Watt
Texture fill rate
28.86
18.40
Memory type
DDR3
GDDR5
Maximum RAM amount
2 GB
2 GB
Memory bus width
128 Bit
128 Bit
Memory clock speed
1782 MHz
4000 MHz
Memory bandwidth
28.51 GB/s
64 GB/s
Shared memory
-
-
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
No outputs
HDMI
+
-
DirectX
12 (11_0)
12 (11_1)
CUDA
3.0
-
OpenCL
1.2
1.2
OpenGL
4.6
4.6
Shader Model
5.1
5.1
Vulkan
1.1.126
1.2.131