GeForce GTX 660M vs Radeon RX 540

In this comparison between GeForce GTX 660M and Radeon RX 540 you will find out which graphics card performs better in today's games. Bear in mind that third-party versions may have more efficient cooling and higher clock speeds. This will increase cards' performance, though not by much. In addition to raw power you should also take into account the dimensions. Thicker models simply will not fit into a small mini-ITX case. The resolution of your monitor also affects the choice, since 4K gameplay requires a more powerful GPU. And don't overspend on the graphics card. Other parts of your build may also need to be upgraded, save some money for the CPU or power supply. For some people GeForce GTX 660M will be the best choice, for others Radeon RX 540 will be their preference. Study the comparison tables below and make your choice.

GeForce GTX 660M and Radeon RX 540 are Laptop Graphics Cards

Note: GeForce GTX 660M and Radeon RX 540 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 540 here:

Main Specs

  GeForce GTX 660M Radeon RX 540
Power consumption (TDP) 50 Watt 65 Watt
Interface MXM-B (3.0) PCIe 3.0 x16
Supplementary power connectors 1x 6-pin
Memory type GDDR5 GDDR5
Maximum RAM amount 2 GB 4 GB
Display Connectors No outputs
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  • Radeon RX 540 has 30% more power consumption, than GeForce GTX 660M.
  • GeForce GTX 660M is connected by MXM-B (3.0), and Radeon RX 540 uses PCIe 3.0 x16 interface.
  • Radeon RX 540 has 2 GB more memory, than GeForce GTX 660M.
  • Both cards are used in Laptops.
  • GeForce GTX 660M is build with Kepler architecture, and Radeon RX 540 - with Polaris.
  • GeForce GTX 660M is manufactured by 28 nm process technology, and Radeon RX 540 - by 14 nm process technology.
  • Memory clock speed of Radeon RX 540 is 4000 MHz higher, than GeForce GTX 660M.

Game benchmarks

high / 1080p 6−7 14−16
ultra / 1080p 4−5 8−9
QHD / 1440p 0−1 3−4
low / 720p 16−18 30−33
medium / 1080p 8−9 18−20
The average gaming FPS of Radeon RX 540 in Assassin's Creed Odyssey is 100% more, than GeForce GTX 660M.

Full Specs

  GeForce GTX 660M Radeon RX 540
Architecture Kepler Polaris
Code name N13E-GE Polaris 12
Type Laptop Laptop
Release date 22 March 2012 21 March 2017
Pipelines 384 512
Core clock speed 835 MHz
Boost Clock 950 MHz 1219 MHz
Transistor count 1,270 million 1,500 million
Manufacturing process technology 28 nm 14 nm
Texture fill rate 30.4 billion/sec 39.01
Floating-point performance 729.6 gflops 1,248 gflops
Memory bus width 128bit 128 Bit
Memory clock speed 2000 MHz 6000 MHz
Memory bandwidth 64.0 GB/s 96 GB/s
Shared memory - -
DirectX 12 API 12.0
Shader Model 5.1 5.0
OpenGL 4.5 4.6
OpenCL 1.1 1.2
Vulkan 1.1.126
CUDA +
FreeSync +
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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