GeForce 8800 GTX vs GeForce GT 640

In this comparison between GeForce 8800 GTX and GeForce GT 640 you will find out which graphics card performs better in today's games. Bear in mind that third-party versions may have more efficient cooling and higher clock speeds. This will increase cards' performance, though not by much. In addition to raw power you should also take into account the dimensions. Thicker models simply will not fit into a small mini-ITX case. The resolution of your monitor also affects the choice, since 4K gameplay requires a more powerful GPU. And don't overspend on the graphics card. Other parts of your build may also need to be upgraded, save some money for the CPU or power supply. For some people GeForce 8800 GTX will be the best choice, for others GeForce GT 640 will be their preference. Study the comparison tables below and make your choice.

Main Specs

  GeForce 8800 GTX GeForce GT 640
Power consumption (TDP) 155 Watt 65 Watt
Interface PCIe 1.0 x16 PCIe 3.0 x16
Supplementary power connectors 2x 6-pin None
Memory type GDDR3 DDR3
Maximum RAM amount 768 MB 2 GB
Display Connectors 2x DVI, 1x S-Video 1x DVI, 1x HDMI, 1x DisplayPort
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  • GeForce 8800 GTX has 138% more power consumption, than GeForce GT 640.
  • GeForce 8800 GTX is connected by PCIe 1.0 x16, and GeForce GT 640 uses PCIe 3.0 x16 interface.
  • GeForce 8800 GTX has 766 GB more memory, than GeForce GT 640.
  • Both cards are used in Desktops.
  • GeForce 8800 GTX is build with Tesla architecture, and GeForce GT 640 - with Kepler.
  • Core clock speed of GeForce GT 640 is 326 MHz higher, than GeForce 8800 GTX.
  • GeForce 8800 GTX is manufactured by 90 nm process technology, and GeForce GT 640 - by 28 nm process technology.
  • GeForce 8800 GTX is 125 mm longer, than GeForce GT 640.
  • Memory clock speed of GeForce GT 640 is 882 MHz higher, than GeForce 8800 GTX.

Game benchmarks

high / 1080p 0−1 2−3
ultra / 1080p 1−2
QHD / 1440p 0−1 0−1
low / 720p 1−2 14−16
medium / 1080p 0−1 5−6
The average gaming FPS of GeForce GT 640 in Assassin's Creed Odyssey is 1400% more, than GeForce 8800 GTX.

Full Specs

  GeForce 8800 GTX GeForce GT 640
Architecture Tesla Kepler
Code name G80 GK107
Type Desktop Desktop
Release date 8 November 2006 5 June 2012
Pipelines 128 384
Core clock speed 576 MHz 902 MHz
Transistor count 681 million 1,270 million
Manufacturing process technology 90 nm 28 nm
Texture fill rate 36.8 billion/sec 28.86
Floating-point performance 345.6 gflops 692.7 gflops
Length 270 mm 145 mm
Memory bus width 384 Bit 128 Bit
Memory clock speed 900 MHz 1782 MHz
Memory bandwidth 86.4 GB/s 28.51 GB/s
DirectX 11.1 (10_0) 12 (11_0)
Shader Model 4.0 5.1
OpenGL 3.3 4.6
OpenCL 1.1 1.2
Vulkan N/A 1.1.126
CUDA + 3.0
CUDA cores 575
SLI options +
Bitcoin / BTC (SHA256) 24 Mh/s
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