GeForce GT 640 vs Radeon HD 7670A

Find out if it is worth upgrading your current GPU setup by comparing GeForce GT 640 and Radeon HD 7670A. Here you can take a closer look at graphics cards specs, such as core clock speed, memory type and size, display connectors, etc. The price, overall benchmark and gaming performances are usually defining factors when it comes to choosing between GeForce GT 640 and Radeon HD 7670A. Make sure that the graphics card has compatible dimensions and will properly fit in your new or current computer case. Also these graphics cards may have different system power recommendations, so take that into consideration and upgrade your PSU if necessary.

Main Specs

  GeForce GT 640 Radeon HD 7670A
Power consumption (TDP) 65 Watt 45 Watt
Interface PCIe 3.0 x16 MXM-A (3.0)
Supplementary power connectors None
Memory type DDR3 GDDR5
Maximum RAM amount 2 GB 1 GB
Display Connectors 1x DVI, 1x HDMI, 1x DisplayPort No outputs
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  • GeForce GT 640 has 44% more power consumption, than Radeon HD 7670A.
  • GeForce GT 640 is connected by PCIe 3.0 x16, and Radeon HD 7670A uses MXM-A (3.0) interface.
  • GeForce GT 640 has 1 GB more memory, than Radeon HD 7670A.
  • Both cards are used in Desktops.
  • GeForce GT 640 is build with Kepler architecture, and Radeon HD 7670A - with TeraScale 2.
  • Core clock speed of GeForce GT 640 is 302 MHz higher, than Radeon HD 7670A.
  • GeForce GT 640 is manufactured by 28 nm process technology, and Radeon HD 7670A - by 40 nm process technology.
  • Memory clock speed of Radeon HD 7670A is 2218 MHz higher, than GeForce GT 640.

Game benchmarks

high / 1080p 2−3 1−2
ultra / 1080p 1−2 0−1
QHD / 1440p 0−1 0−1
low / 720p 14−16 12−14
medium / 1080p 5−6 3−4
The average gaming FPS of GeForce GT 640 in Assassin's Creed Odyssey is 16% more, than Radeon HD 7670A.

Full Specs

  GeForce GT 640 Radeon HD 7670A
Architecture Kepler TeraScale 2
Code name GK107 Turks
Type Desktop Desktop
Release date 5 June 2012 5 January 2012
Pipelines 384 480
Core clock speed 902 MHz 600 MHz
Transistor count 1,270 million 716 million
Manufacturing process technology 28 nm 40 nm
Texture fill rate 28.86 14.40
Floating-point performance 692.7 gflops 576.0 gflops
Length 145 mm
Memory bus width 128 Bit 128 Bit
Memory clock speed 1782 MHz 4000 MHz
Memory bandwidth 28.51 GB/s 64 GB/s
DirectX 12 (11_0) 11.2 (11_0)
Shader Model 5.1 5.0
OpenGL 4.6 4.4
OpenCL 1.2 1.2
Vulkan 1.1.126 N/A
CUDA 3.0
Bitcoin / BTC (SHA256) 24 Mh/s
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