GeForce GTX 660M vs Radeon Pro 455

In this comparison between GeForce GTX 660M and Radeon Pro 455 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 Pro 455 will be their preference. Study the comparison tables below and make your choice.

GeForce GTX 660M and Radeon Pro 455 are Laptop Graphics Cards

Note: GeForce GTX 660M and Radeon Pro 455 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 Pro 455 here:

Main Specs

  GeForce GTX 660M Radeon Pro 455
Power consumption (TDP) 50 Watt 35 Watt
Interface MXM-B (3.0) PCIe 3.0 x8
Supplementary power connectors None
Memory type GDDR5 GDDR5
Maximum RAM amount 2 GB 2 GB
Display Connectors No outputs No outputs
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  • GeForce GTX 660M has 42% more power consumption, than Radeon Pro 455.
  • GeForce GTX 660M is connected by MXM-B (3.0), and Radeon Pro 455 uses PCIe 3.0 x8 interface.
  • GeForce GTX 660M and Radeon Pro 455 have maximum RAM of 2 GB.
  • GeForce GTX 660M is used in Laptops, and Radeon Pro 455 - in Mobile workstations.
  • GeForce GTX 660M is build with Kepler architecture, and Radeon Pro 455 - with Polaris.
  • Core clock speed of Radeon Pro 455 is 20 MHz higher, than GeForce GTX 660M.
  • GeForce GTX 660M is manufactured by 28 nm process technology, and Radeon Pro 455 - by 14 nm process technology.
  • Memory clock speed of Radeon Pro 455 is 3000 MHz higher, than GeForce GTX 660M.

Game benchmarks

high / 1080p 6−7 16−18
ultra / 1080p 4−5 9−10
QHD / 1440p 0−1 4−5
4K / 2160p 4−5
low / 720p 16−18 30−35
medium / 1080p 8−9 20−22
The average gaming FPS of Radeon Pro 455 in Assassin's Creed Odyssey is 122% more, than GeForce GTX 660M.

Full Specs

  GeForce GTX 660M Radeon Pro 455
Architecture Kepler Polaris
Code name N13E-GE Polaris 11
Type Laptop Mobile workstation
Release date 22 March 2012 27 October 2016
Pipelines 384 768
Core clock speed 835 MHz 855 MHz
Boost Clock 950 MHz
Transistor count 1,270 million 3,000 million
Manufacturing process technology 28 nm 14 nm
Texture fill rate 30.4 billion/sec 41.04
Floating-point performance 729.6 gflops 1,313 gflops
Memory bus width 128bit 128 Bit
Memory clock speed 2000 MHz 5000 MHz
Memory bandwidth 64.0 GB/s 81.28 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 +
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 163 Mh/s
Laptop size large large
Optimus +
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