GeForce GTX 660M vs Radeon HD 7660G plus HD 7670M Dual Graphics

If you are going to buy a new graphics card and are choosing between GeForce GTX 660M and Radeon HD 7660G plus HD 7670M Dual Graphics, 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 GeForce GTX 660M stacks up against Radeon HD 7660G plus HD 7670M Dual Graphics, check out specs charts below.

GeForce GTX 660M and Radeon HD 7660G plus HD 7670M Dual Graphics are Laptop Graphics Cards

Note: GeForce GTX 660M and Radeon HD 7660G plus HD 7670M Dual Graphics 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 GeForce GTX 660M or Radeon HD 7660G plus HD 7670M Dual Graphics here:

Main Specs

  GeForce GTX 660M Radeon HD 7660G plus HD 7670M Dual Graphics
Power consumption (TDP) 50 Watt
Interface MXM-B (3.0)
Memory type GDDR5 DDR3,GDDR5
Maximum RAM amount 2 GB
Display Connectors No outputs
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  • Both cards are used in Laptops.
  • GeForce GTX 660M is build with Kepler architecture, and Radeon HD 7660G plus HD 7670M Dual Graphics - with Terascale 2.
  • Core clock speed of GeForce GTX 660M is 150 MHz higher, than Radeon HD 7660G plus HD 7670M Dual Graphics.
  • GeForce GTX 660M is manufactured by 28 nm process technology, and Radeon HD 7660G plus HD 7670M Dual Graphics - by 40 / 32 nm process technology.
  • Memory clock speed of GeForce GTX 660M is 200 MHz higher, than Radeon HD 7660G plus HD 7670M Dual Graphics.

Game benchmarks

high / 1080p 6−7 1−2
ultra / 1080p 4−5 0−1
QHD / 1440p 0−1 0−1
low / 720p 16−18 12−14
medium / 1080p 8−9 3−4
The average gaming FPS of GeForce GTX 660M in Assassin's Creed Odyssey is 66% more, than Radeon HD 7660G plus HD 7670M Dual Graphics.

Full Specs

  GeForce GTX 660M Radeon HD 7660G plus HD 7670M Dual Graphics
Architecture Kepler Terascale 2
Code name N13E-GE
Type Laptop Laptop
Release date 22 March 2012 15 May 2012
Pipelines 384 862
Core clock speed 835 MHz 685 / 600 MHz
Boost Clock 950 MHz
Transistor count 1,270 million
Manufacturing process technology 28 nm 40 / 32 nm
Texture fill rate 30.4 billion/sec
Floating-point performance 729.6 gflops
Memory bus width 128bit 128 Bit
Memory clock speed 2000 MHz 1800 MHz
Memory bandwidth 64.0 GB/s
Shared memory - -
DirectX 12 API DirectX 11, Shader 5.0
Shader Model 5.1
OpenGL 4.5
OpenCL 1.1
Vulkan 1.1.126
CUDA +
CUDA cores 384
Bus support PCI Express 2.0, PCI Express 3.0
SLI options +
HDMI +
HDCP +
Maximum VGA resolution Up to 2048x1536
Bitcoin / BTC (SHA256) 36 Mh/s
Laptop size large medium sized
Optimus +
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