GeForce GTX 660M vs Radeon RX 480 mobile

When comparing GeForce GTX 660M and Radeon RX 480 mobile, 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 480 mobile 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 480 mobile are Laptop Graphics Cards

Note: GeForce GTX 660M and Radeon RX 480 mobile 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 480 mobile here:

Main Specs

  GeForce GTX 660M Radeon RX 480 mobile
Power consumption (TDP) 50 Watt 100 Watt
Interface MXM-B (3.0) MXM-B (3.0)
Memory type GDDR5 GDDR5
Maximum RAM amount 2 GB 8 GB
Display Connectors No outputs No outputs
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  • Radeon RX 480 mobile has 100% more power consumption, than GeForce GTX 660M.
  • Both video cards are using MXM-B (3.0) interface connection to a motherboard.
  • Radeon RX 480 mobile has 6 GB more memory, than GeForce GTX 660M.
  • Both cards are used in Laptops.
  • GeForce GTX 660M is build with Kepler architecture, and Radeon RX 480 mobile - with Polaris.
  • GeForce GTX 660M is manufactured by 28 nm process technology, and Radeon RX 480 mobile - by 14 nm process technology.
  • Memory clock speed of Radeon RX 480 mobile is 6000 MHz higher, than GeForce GTX 660M.

Game benchmarks

high / 1080p 6−7 12−14
ultra / 1080p 4−5 7−8
QHD / 1440p 0−1 0−1
low / 720p 16−18 27−30
medium / 1080p 8−9 14−16
The average gaming FPS of Radeon RX 480 mobile in Assassin's Creed Odyssey is 77% more, than GeForce GTX 660M.

Full Specs

  GeForce GTX 660M Radeon RX 480 mobile
Architecture Kepler Polaris
Code name N13E-GE Polaris
Type Laptop Laptop
Release date 22 March 2012 1 August 2016
Pipelines 384 2304
Core clock speed 835 MHz
Boost Clock 950 MHz 1077 MHz
Transistor count 1,270 million 5,700 million
Manufacturing process technology 28 nm 14 nm
Texture fill rate 30.4 billion/sec 155.1
Floating-point performance 729.6 gflops 4,963 gflops
Memory bus width 128bit 256 Bit
Memory clock speed 2000 MHz 8000 MHz
Memory bandwidth 64.0 GB/s 256.0 GB/s
Shared memory - -
DirectX 12 API 12 (12_0)
Shader Model 5.1 6.4
OpenGL 4.5 4.6
OpenCL 1.1 2.0
Vulkan 1.1.126 1.2.131
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 large
Optimus +
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