GeForce GTX 660M vs Radeon HD 7670A

When comparing GeForce GTX 660M and Radeon HD 7670A, 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 GeForce GTX 660M and Radeon HD 7670A is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.

GeForce GTX 660M is a Laptop Graphics Card

Note: GeForce GTX 660M 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 GeForce GTX 660M here:

Main Specs

  GeForce GTX 660M Radeon HD 7670A
Power consumption (TDP) 50 Watt 45 Watt
Interface MXM-B (3.0) MXM-A (3.0)
Memory type GDDR5 GDDR5
Maximum RAM amount 2 GB 1 GB
Display Connectors No outputs No outputs
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  • GeForce GTX 660M has 11% more power consumption, than Radeon HD 7670A.
  • GeForce GTX 660M is connected by MXM-B (3.0), and Radeon HD 7670A uses MXM-A (3.0) interface.
  • GeForce GTX 660M has 1 GB more memory, than Radeon HD 7670A.
  • GeForce GTX 660M is used in Laptops, and Radeon HD 7670A - in Desktops.
  • GeForce GTX 660M is build with Kepler architecture, and Radeon HD 7670A - with TeraScale 2.
  • Core clock speed of GeForce GTX 660M is 235 MHz higher, than Radeon HD 7670A.
  • GeForce GTX 660M is manufactured by 28 nm process technology, and Radeon HD 7670A - by 40 nm process technology.
  • Memory clock speed of Radeon HD 7670A is 2000 MHz higher, than GeForce GTX 660M.

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 7670A.

Full Specs

  GeForce GTX 660M Radeon HD 7670A
Architecture Kepler TeraScale 2
Code name N13E-GE Turks
Type Laptop Desktop
Release date 22 March 2012 5 January 2012
Pipelines 384 480
Core clock speed 835 MHz 600 MHz
Boost Clock 950 MHz
Transistor count 1,270 million 716 million
Manufacturing process technology 28 nm 40 nm
Texture fill rate 30.4 billion/sec 14.40
Floating-point performance 729.6 gflops 576.0 gflops
Memory bus width 128bit 128 Bit
Memory clock speed 2000 MHz 4000 MHz
Memory bandwidth 64.0 GB/s 64 GB/s
Shared memory -
DirectX 12 API 11.2 (11_0)
Shader Model 5.1 5.0
OpenGL 4.5 4.4
OpenCL 1.1 1.2
Vulkan 1.1.126 N/A
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
Optimus +
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