GeForce GTX 660M vs Radeon RX Vega 8

When choosing between GeForce GTX 660M and Radeon RX Vega 8, 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 GeForce GTX 660M and Radeon RX Vega 8.

GeForce GTX 660M and Radeon RX Vega 8 are Laptop Graphics Cards

Note: GeForce GTX 660M and Radeon RX Vega 8 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 RX Vega 8 here:

Main Specs

  GeForce GTX 660M Radeon RX Vega 8
Power consumption (TDP) 50 Watt
Interface MXM-B (3.0)
Memory type 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 RX Vega 8 - with Vega.
  • GeForce GTX 660M is manufactured by 28 nm process technology, and Radeon RX Vega 8 - by 14 nm process technology.

Game benchmarks

high / 1080p 6−7 8−9
ultra / 1080p 4−5 5−6
QHD / 1440p 0−1 0−1
low / 720p 16−18 18−20
medium / 1080p 8−9 10−11
The average gaming FPS of Radeon RX Vega 8 in Assassin's Creed Odyssey is 11% more, than GeForce GTX 660M.

Full Specs

  GeForce GTX 660M Radeon RX Vega 8
Architecture Kepler Vega
Code name N13E-GE Vega Raven Ridge
Type Laptop Laptop
Release date 22 March 2012 26 October 2017
Pipelines 384 512
Core clock speed 835 MHz
Boost Clock 950 MHz 1200 MHz
Transistor count 1,270 million
Manufacturing process technology 28 nm 14 nm
Texture fill rate 30.4 billion/sec
Floating-point performance 729.6 gflops
Memory bus width 128bit
Memory clock speed 2000 MHz
Memory bandwidth 64.0 GB/s
Shared memory - -
DirectX 12 API DirectX 12_1
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
Optimus +
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