GeForce GTS 450 Rev. 2 and GeForce 8800 GTS 640 - video card comparison
GeForce GTS 450 Rev. 2
GeForce 8800 GTS 640
Architecture
Fermi 2.0 (2010−2014)
Tesla (2006−2010)
GPU code name
GF116
G80
Market segment
Desktop
Desktop
Release date
March 2011
November 2006
Interface
PCIe 2.0 x16
PCIe 1.0 x16
Supplementary power connectors
1x 6-pin
1x 6-pin
Core clock speed
783 MHz
513 MHz
Floating-point performance
601.3 gflops
228.1 gflops
Manufacturing process technology
40 nm
90 nm
Number of transistors
1,170 million
681 million
Pipelines / CUDA cores
192
96
Power consumption (TDP)
106 Watt
143 Watt
Texture fill rate
25.06
24.62
Memory type
GDDR5
GDDR3
Maximum RAM amount
1 GB
640 MB
Memory bus width
128 Bit
320 Bit
Memory clock speed
3608 MHz
1584 MHz
Memory bandwidth
57.73 GB/s
63.36 GB/s
Display Connectors
2x DVI, 1x mini-HDMI
2x DVI, 1x S-Video
HDMI
+
-
DirectX
12 (11_0)
11.1 (10_0)
CUDA
2.1
+
OpenCL
1.1
1.1
OpenGL
4.6
3.3
Shader Model
5.1
4.0
Vulkan
N/A
N/A