Radeon HD 7660G plus HD 7670M Dual Graphics vs Radeon R9 M395X

When comparing Radeon HD 7660G plus HD 7670M Dual Graphics and Radeon R9 M395X, we look primarily at benchmarks and game tests. But it is not only about the numbers. Often you can find third-party models with higher clock speeds, better cooling, or a customizable RGB lighting. Not all of them will have all the features you need. Another thing to consider is the port selection. Most graphics cards have at least one DisplayPort and HDMI interface, but some monitors require DVI. Before you buy, check the TDP of the graphics card - this characteristic will help you estimate the consumption of the graphics card. You may even have to upgrade your PSU to meet its requirements. An important factor when choosing between Radeon HD 7660G plus HD 7670M Dual Graphics and Radeon R9 M395X is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.

Radeon HD 7660G plus HD 7670M Dual Graphics and Radeon R9 M395X are Laptop Graphics Cards

Note: Radeon HD 7660G plus HD 7670M Dual Graphics and Radeon R9 M395X are only used in laptop graphics. They have 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 or Radeon R9 M395X here:

Main Specs

  Radeon HD 7660G plus HD 7670M Dual Graphics Radeon R9 M395X
Power consumption (TDP) 250 Watt
Interface PCIe 3.0 x16
Supplementary power connectors None
Memory type DDR3,GDDR5 GDDR5
Maximum RAM amount 4 GB
Display Connectors No outputs
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  • Both cards are used in Laptops.
  • Radeon HD 7660G plus HD 7670M Dual Graphics is build with Terascale 2 architecture, and Radeon R9 M395X - with GCN 3.
  • Core clock speed of Radeon R9 M395X is 38 MHz higher, than Radeon HD 7660G plus HD 7670M Dual Graphics.
  • Radeon HD 7660G plus HD 7670M Dual Graphics is manufactured by 40 / 32 nm process technology, and Radeon R9 M395X - by 28 nm process technology.
  • Memory clock speed of Radeon HD 7660G plus HD 7670M Dual Graphics is 550 MHz higher, than Radeon R9 M395X.

Game benchmarks

high / 1080p 1−2 24−27
ultra / 1080p 0−1 14−16
QHD / 1440p 0−1 9−10
4K / 2160p 6−7
low / 720p 12−14 45−50
medium / 1080p 3−4 30−35
The average gaming FPS of Radeon R9 M395X in Assassin's Creed Odyssey is 483% more, than Radeon HD 7660G plus HD 7670M Dual Graphics.

Full Specs

  Radeon HD 7660G plus HD 7670M Dual Graphics Radeon R9 M395X
Architecture Terascale 2 GCN 3
Code name Amethyst XT
Type Laptop Laptop
Release date 15 May 2012 16 October 2014
Pipelines 862 2048
Core clock speed 685 / 600 MHz 723 MHz
Transistor count 5,000 million
Manufacturing process technology 40 / 32 nm 28 nm
Texture fill rate 92.54
Floating-point performance 2,961 gflops
Memory bus width 128 Bit 256 Bit
Memory clock speed 1800 MHz 1250 MHz
Memory bandwidth 160.0 GB/s
Shared memory - -
DirectX DirectX 11, Shader 5.0
Shader Model 6.3
OpenGL 4.4
OpenCL Not Listed
FreeSync +
Bus support PCIe 3.0
Bitcoin / BTC (SHA256) 413 Mh/s
Laptop size medium sized large
Eyefinity +
HD3D +
PowerTune +
DualGraphics +
TrueAudio +
ZeroCore +
Switchable graphics +
Mantle +
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