Radeon HD 6790 vs Radeon HD 7660G plus HD 7670M Dual Graphics

When choosing between Radeon HD 6790 and Radeon HD 7660G plus HD 7670M Dual Graphics, it is worth examining the specifications of the models in detail. Do they meet the recommended requirements of modern games and software? Storage capacity, form factor, TDP, available ports, warranty and manufacturer support are all important. For example, the size of a PC case can limit the maximum thickness and length of the card. Often, instead of the factory overclocked card and RGB backlight, it is better to choose a reference model with a more efficient GPU. And make sure that your current power supply unit has the correct connection pins (using adapters is not recommended). This GPUs compare tool is meant to help you to choose the best graphics card for your build. Let's find out the difference between Radeon HD 6790 and Radeon HD 7660G plus HD 7670M Dual Graphics.

Radeon HD 7660G plus HD 7670M Dual Graphics is a Laptop Graphics Card

Note: Radeon HD 7660G plus HD 7670M Dual Graphics 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 7660G plus HD 7670M Dual Graphics here:

Main Specs

  Radeon HD 6790 Radeon HD 7660G plus HD 7670M Dual Graphics
Power consumption (TDP) 150 Watt
Interface PCIe 2.0 x16
Supplementary power connectors 2x 6-pin
Memory type GDDR5 DDR3,GDDR5
Maximum RAM amount 1 GB
Display Connectors 2x DVI, 1x HDMI, 1x DisplayPort
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  • Radeon HD 6790 is used in Desktops, and Radeon HD 7660G plus HD 7670M Dual Graphics - in Laptops.
  • Radeon HD 6790 and Radeon HD 7660G plus HD 7670M Dual Graphics are build with Terascale 2 architecture.
  • Core clock speed of Radeon HD 6790 is 155 MHz higher, than Radeon HD 7660G plus HD 7670M Dual Graphics.
  • Radeon HD 6790 is manufactured by 40 nm process technology, and Radeon HD 7660G plus HD 7670M Dual Graphics - by 40 / 32 nm process technology.
  • Memory clock speed of Radeon HD 7660G plus HD 7670M Dual Graphics is 750 MHz higher, than Radeon HD 6790.

Game benchmarks

high / 1080p 7−8 1−2
ultra / 1080p 4−5 0−1
QHD / 1440p 0−1 0−1
low / 720p 18−20 12−14
medium / 1080p 9−10 3−4
The average gaming FPS of Radeon HD 6790 in Assassin's Creed Odyssey is 100% more, than Radeon HD 7660G plus HD 7670M Dual Graphics.

Full Specs

  Radeon HD 6790 Radeon HD 7660G plus HD 7670M Dual Graphics
Architecture Terascale 2 Terascale 2
Code name Barts
Type Desktop Laptop
Release date 4 April 2011 15 May 2012
Pipelines 800 862
Core clock speed 840 MHz 685 / 600 MHz
Transistor count 1,700 million
Manufacturing process technology 40 nm 40 / 32 nm
Texture fill rate 33.60
Floating-point performance 1,344.0 gflops
Length 198 mm
Memory bus width 256 Bit 128 Bit
Memory clock speed 1050 MHz 1800 MHz
Memory bandwidth 134.4 GB/s
Shared memory -
DirectX 11.2 (11_0) DirectX 11, Shader 5.0
Shader Model 5.0
OpenGL 4.4
OpenCL 1.2
Vulkan N/A
Bitcoin / BTC (SHA256) 122 Mh/s
Laptop size medium sized
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