GeForce GT 640 and GeForce 8600 GT - video card comparison
Passmark - benchmark score GeForce GT 640 vs GeForce 8600 GT
GeForce GT 640
1209
GeForce 8600 GT
127
GeForce GT 640
GeForce 8600 GT
Architecture
Kepler (2012−2018)
Tesla (2006−2010)
GPU code name
GK107
G84
Market segment
Desktop
Desktop
Release date
June 2012
April 2007
Interface
PCIe 3.0 x16
PCIe 1.0 x16
Supplementary power connectors
None
None
SLI options
-
+
Core clock speed
902 MHz
540 MHz
Floating-point performance
692.7 gflops
76.16 gflops
Manufacturing process technology
28 nm
80 nm
Number of transistors
1,270 million
289 million
Pipelines / CUDA cores
384
32
Power consumption (TDP)
65 Watt
47 Watt
Texture fill rate
28.86
8.6 billion/sec
Memory type
DDR3
GDDR3
Maximum RAM amount
2 GB
512 MB
Memory bus width
128 Bit
128 Bit
Memory clock speed
1782 MHz
700 MHz
Memory bandwidth
28.51 GB/s
22.4 GB/s
Standard memory config per GPU
-
256 MB
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
2x DVI, 1x S-Video
HDMI
+
-
DirectX
12 (11_0)
11.1 (10_0)
CUDA
3.0
1.1
OpenCL
1.2
1.1
OpenGL
4.6
2.1
Shader Model
5.1
4.0
Vulkan
1.1.126
N/A