GeForce GT 640 and GeForce 9400M G - video card comparison
Passmark - benchmark score GeForce GT 640 vs GeForce 9400M G
GeForce GT 640
1209
GeForce 9400M G
69
GeForce GT 640
GeForce 9400M G
Architecture
Kepler (2012−2018)
Tesla (2006−2010)
GPU code name
GK107
C79
Market segment
Desktop
Desktop
Release date
June 2012
October 2008
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
None
-
Core clock speed
902 MHz
450 MHz
Floating-point performance
692.7 gflops
-
Manufacturing process technology
28 nm
65 nm
Number of transistors
1,270 million
314 million
Pipelines / CUDA cores
384
16
Power consumption (TDP)
65 Watt
12 Watt
Texture fill rate
28.86
3.600
Memory type
DDR3
System Shared
Maximum RAM amount
2 GB
System Shared
Memory bus width
128 Bit
System Shared
Memory clock speed
1782 MHz
System Shared
Memory bandwidth
28.51 GB/s
-
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
No outputs
HDMI
+
-
DirectX
12 (11_0)
11.1 (10_0)
CUDA
3.0
-
OpenCL
1.2
N/A
OpenGL
4.6
3.3
Shader Model
5.1
4.0
Vulkan
1.1.126
N/A