GeForce GTX 660M vs Radeon RX Vega 3

When comparing GeForce GTX 660M and Radeon RX Vega 3, 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 RX Vega 3 is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.

GeForce GTX 660M and Radeon RX Vega 3 are Laptop Graphics Cards

Note: GeForce GTX 660M and Radeon RX Vega 3 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 3 here:

Main Specs

  GeForce GTX 660M Radeon RX Vega 3
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 3 - with Vega.
  • GeForce GTX 660M is manufactured by 28 nm process technology, and Radeon RX Vega 3 - by 14 nm process technology.

Game benchmarks

high / 1080p 6−7 2−3
ultra / 1080p 4−5 1−2
QHD / 1440p 0−1 0−1
low / 720p 16−18 14−16
medium / 1080p 8−9 4−5
The average gaming FPS of GeForce GTX 660M in Assassin's Creed Odyssey is 80% more, than Radeon RX Vega 3.

Full Specs

  GeForce GTX 660M Radeon RX Vega 3
Architecture Kepler Vega
Code name N13E-GE Vega Raven Ridge
Type Laptop Laptop
Release date 22 March 2012 7 January 2018
Pipelines 384 192
Core clock speed 835 MHz
Boost Clock 950 MHz 1000 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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