GeForce GT 640 and GeForce 9400M (G) / ION (LE) - video card comparison
GeForce GT 640
GeForce 9400M (G) / ION (LE)
Architecture
Kepler (2012−2018)
-
GPU code name
GK107
MCP79MX
Market segment
Desktop
Laptop
Release date
June 2012
October 2008
Interface
PCIe 3.0 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
282 Million
Pipelines / CUDA cores
384
16
Power consumption (TDP)
65 Watt
12 Watt
Texture fill rate
28.86
-
Memory type
DDR3
-
Maximum RAM amount
2 GB
-
Memory bus width
128 Bit
-
Memory clock speed
1782 MHz
-
Memory bandwidth
28.51 GB/s
-
Shared memory
-
+
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
-
HDMI
+
-
DirectX
12 (11_0)
10.0
CUDA
3.0
-
OpenCL
1.2
-
OpenGL
4.6
-
Shader Model
5.1
-
Vulkan
1.1.126
-