Radeon HD 7660G plus HD 7670M Dual Graphics vs Radeon HD 7850

If you are going to buy a new graphics card and are choosing between Radeon HD 7660G plus HD 7670M Dual Graphics and Radeon HD 7850, there are a couple of things to consider. Cards with more VRAM in general perform better and allow you to play on higher graphics settings. Size also makes a difference. A model with a large heatsink can occupy up to three expansion slots on a motherboard. Be sure you have enough room in your PC case. When comparing GPUs with different architectures, more processing cores and even higher TFLOPS will not always translate to better performance. To help you decide which GPU you need, we have measured frame rates in a number of popular games. For more on how the Radeon HD 7660G plus HD 7670M Dual Graphics stacks up against Radeon HD 7850, check out specs charts below.

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 7660G plus HD 7670M Dual Graphics Radeon HD 7850
Power consumption (TDP) 225 Watt
Interface PCIe 3.0 x16
Supplementary power connectors 1x 6-pin
Memory type DDR3,GDDR5 GDDR5
Maximum RAM amount 2 GB
Display Connectors 1x DVI, 1x HDMI, 2x mini-DisplayPort
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  • Radeon HD 7660G plus HD 7670M Dual Graphics is used in Laptops, and Radeon HD 7850 - in Desktops.
  • Radeon HD 7660G plus HD 7670M Dual Graphics is build with Terascale 2 architecture, and Radeon HD 7850 - with GCN 1.0.
  • Radeon HD 7660G plus HD 7670M Dual Graphics is manufactured by 40 / 32 nm process technology, and Radeon HD 7850 - by 28 nm process technology.
  • Memory clock speed of Radeon HD 7660G plus HD 7670M Dual Graphics is 600 MHz higher, than Radeon HD 7850.

Game benchmarks

high / 1080p 1−2 18−20
ultra / 1080p 0−1 10−12
QHD / 1440p 0−1 5−6
4K / 2160p 4−5
low / 720p 12−14 35−40
medium / 1080p 3−4 24−27
The average gaming FPS of Radeon HD 7850 in Assassin's Creed Odyssey is 350% more, than Radeon HD 7660G plus HD 7670M Dual Graphics.

Full Specs

  Radeon HD 7660G plus HD 7670M Dual Graphics Radeon HD 7850
Architecture Terascale 2 GCN 1.0
Code name Pitcairn
Type Laptop Desktop
Release date 15 May 2012 5 March 2012
Pipelines 862 1024
Core clock speed 685 / 600 MHz
Boost Clock 1000 MHz
Transistor count 2,800 million
Manufacturing process technology 40 / 32 nm 28 nm
Texture fill rate 55.04
Floating-point performance 1,761 gflops
Length 210 mm
Memory bus width 128 Bit 256 Bit
Memory clock speed 1800 MHz 1200 MHz
Memory bandwidth 153.6 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) 249 Mh/s
Laptop size medium sized
Eyefinity +
Design reference
CrossFire +
Ethereum / ETH (DaggerHashimoto) 12.5 Mh/s
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