GeForce GT 640 vs P104 100

In this comparison between GeForce GT 640 and P104 100 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 GT 640 will be the best choice, for others P104 100 will be their preference. Study the comparison tables below and make your choice.

Main Specs

  GeForce GT 640 P104 100
Power consumption (TDP) 65 Watt
Interface PCIe 3.0 x16 PCIe 3.0 x16
Supplementary power connectors None 1x 8-pin
Memory type DDR3 GDDR5X
Maximum RAM amount 2 GB 4 GB
Display Connectors 1x DVI, 1x HDMI, 1x DisplayPort No outputs
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  • Both video cards are using PCIe 3.0 x16 interface connection to a motherboard.
  • P104 100 has 2 GB more memory, than GeForce GT 640.
  • Both cards are used in Desktops.
  • GeForce GT 640 is build with Kepler architecture, and P104 100 - with Pascal.
  • Core clock speed of P104 100 is 705 MHz higher, than GeForce GT 640.
  • GeForce GT 640 is manufactured by 28 nm process technology, and P104 100 - by 16 nm process technology.
  • P104 100 is 122 mm longer, than GeForce GT 640.
  • Memory clock speed of P104 100 is 8226 MHz higher, than GeForce GT 640.

Game benchmarks

high / 1080p 2−3 35−40
ultra / 1080p 1−2 21−24
QHD / 1440p 0−1 16−18
4K / 2160p 10−11
low / 720p 14−16 60−65
medium / 1080p 5−6 40−45
The average gaming FPS of P104 100 in Assassin's Creed Odyssey is 583% more, than GeForce GT 640.

Full Specs

  GeForce GT 640 P104 100
Architecture Kepler Pascal
Code name GK107 GP104
Type Desktop Desktop
Release date 5 June 2012 12 December 2017
Pipelines 384 1920
Core clock speed 902 MHz 1607 MHz
Boost Clock 1733 MHz
Transistor count 1,270 million 7,200 million
Manufacturing process technology 28 nm 16 nm
Texture fill rate 28.86 208.0
Floating-point performance 692.7 gflops 8,873 gflops
Length 145 mm 267 mm
Memory bus width 128 Bit 256 Bit
Memory clock speed 1782 MHz 10008 MHz
Memory bandwidth 28.51 GB/s 320.3 GB/s
DirectX 12 (11_0) 12 (12_1)
Shader Model 5.1 6.4
OpenGL 4.6 4.6
OpenCL 1.2 1.2
Vulkan 1.1.126 1.2.131
CUDA 3.0 6.1
Bitcoin / BTC (SHA256) 24 Mh/s
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