Radeon HD 6740G2 vs Radeon HD 7970

Find out if it is worth upgrading your current GPU setup by comparing Radeon HD 6740G2 and Radeon HD 7970. 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 Radeon HD 6740G2 and Radeon HD 7970. 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.

Radeon HD 6740G2 is a Laptop Graphics Card

Note: Radeon HD 6740G2 is only used in laptop graphics. It has lower GPU clock speed compared to the desktop variant, which results in lower power consumption, but also 10-30% lower gaming performance. Check available laptop models with Radeon HD 6740G2 here:

Main Specs

  Radeon HD 6740G2 Radeon HD 7970
Power consumption (TDP) 300 Watt
Interface PCIe 3.0 x16
Supplementary power connectors 1x 6-pin + 1x 8-pin
Memory type GDDR5
Maximum RAM amount 3 GB
Display Connectors 1x DVI, 1x HDMI, 2x mini-DisplayPort
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  • Radeon HD 6740G2 is used in Laptops, and Radeon HD 7970 - in Desktops.
  • Radeon HD 6740G2 is build with Terascale 2 architecture, and Radeon HD 7970 - with GCN.
  • Radeon HD 6740G2 is manufactured by 40 nm process technology, and Radeon HD 7970 - by 28 nm process technology.

Game benchmarks

high / 1080p 0−1 35−40
ultra / 1080p 0−1 21−24
QHD / 1440p 0−1 16−18
4K / 2160p 10−11
low / 720p 10−12 60−65
medium / 1080p 2−3 40−45
The average gaming FPS of Radeon HD 7970 in Assassin's Creed Odyssey is 766% more, than Radeon HD 6740G2.

Full Specs

  Radeon HD 6740G2 Radeon HD 7970
Architecture Terascale 2 GCN
Code name Tahiti XT
Type Laptop Desktop
Release date 14 June 2011 22 December 2011
Pipelines 880 2048
Boost Clock 925 MHz
Transistor count 4,313 million
Manufacturing process technology 40 nm 28 nm
Texture fill rate 118.4
Floating-point performance 3,789 gflops
Length 274 mm
Memory bus width 384 Bit
Memory clock speed 1375 MHz
Memory bandwidth 264 GB/s
Shared memory - -
DirectX DirectX 11, Shader 5.0
Shader Model 5.1
OpenGL 4.6
OpenCL 1.2
FreeSync +
Bus support PCIe 2.1 x16
HDMI +
Bitcoin / BTC (SHA256) 485 Mh/s
Laptop size medium sized
Eyefinity +
Design reference
CrossFire +
Ethereum / ETH (DaggerHashimoto) 20.71 Mh/s
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