GeForce GT 640 vs Radeon HD 6750

Find out if it is worth upgrading your current GPU setup by comparing GeForce GT 640 and Radeon HD 6750. 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 6750. 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 6750
Power consumption (TDP) 65 Watt 86 Watt
Interface PCIe 3.0 x16 PCIe 2.0 x16
Supplementary power connectors None 1x 6-pin
Memory type DDR3 GDDR5
Maximum RAM amount 2 GB 1 GB
Display Connectors 1x DVI, 1x HDMI, 1x DisplayPort 2x DVI, 1x HDMI, 2x mini-DisplayPort
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  • Radeon HD 6750 has 32% more power consumption, than GeForce GT 640.
  • GeForce GT 640 is connected by PCIe 3.0 x16, and Radeon HD 6750 uses PCIe 2.0 x16 interface.
  • GeForce GT 640 has 1 GB more memory, than Radeon HD 6750.
  • Both cards are used in Desktops.
  • GeForce GT 640 is build with Kepler architecture, and Radeon HD 6750 - with TeraScale 2.
  • GeForce GT 640 is manufactured by 28 nm process technology, and Radeon HD 6750 - by 40 nm process technology.
  • Radeon HD 6750 is 25 mm longer, than GeForce GT 640.
  • Memory clock speed of GeForce GT 640 is 732 MHz higher, than Radeon HD 6750.

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 6750.

Full Specs

  GeForce GT 640 Radeon HD 6750
Architecture Kepler TeraScale 2
Code name GK107 Juniper
Type Desktop Desktop
Release date 5 June 2012 21 January 2011
Pipelines 384 720
Core clock speed 902 MHz
Boost Clock 900 MHz
Transistor count 1,270 million 1,040 million
Manufacturing process technology 28 nm 40 nm
Texture fill rate 28.86 25.20
Floating-point performance 692.7 gflops 1,008.0 gflops
Length 145 mm 170 mm
Memory bus width 128 Bit 128 Bit
Memory clock speed 1782 MHz 1050 MHz
Memory bandwidth 28.51 GB/s 73.6 GB/s
DirectX 12 (11_0)
Shader Model 5.1 5.0
OpenGL 4.6 4.4
OpenCL 1.2 1.2
Vulkan 1.1.126
CUDA 3.0
Bus support PCIe 2.0 x16
HDMI +
Bitcoin / BTC (SHA256) 24 Mh/s 92 Mh/s
Eyefinity +
Design reference
CrossFire +
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