GeForce GTX 660M vs Radeon Pro 555

Find out if it is worth upgrading your current GPU setup by comparing GeForce GTX 660M and Radeon Pro 555. Here you can take a closer look at graphics cards specs, such as core clock speed, memory type and size, display connectors, etc. The price, overall benchmark and gaming performances are usually defining factors when it comes to choosing between GeForce GTX 660M and Radeon Pro 555. Make sure that the graphics card has compatible dimensions and will properly fit in your new or current computer case. Also these graphics cards may have different system power recommendations, so take that into consideration and upgrade your PSU if necessary.

GeForce GTX 660M and Radeon Pro 555 are Laptop Graphics Cards

Note: GeForce GTX 660M and Radeon Pro 555 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 555 here:

Main Specs

  GeForce GTX 660M Radeon Pro 555
Power consumption (TDP) 50 Watt 75 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
  Check Price Check Price
  • Radeon Pro 555 has 50% more power consumption, than GeForce GTX 660M.
  • GeForce GTX 660M is connected by MXM-B (3.0), and Radeon Pro 555 uses PCIe 3.0 x8 interface.
  • GeForce GTX 660M and Radeon Pro 555 have maximum RAM of 2 GB.
  • GeForce GTX 660M is used in Laptops, and Radeon Pro 555 - in Mobile workstations.
  • GeForce GTX 660M is build with Kepler architecture, and Radeon Pro 555 - with Polaris.
  • Core clock speed of Radeon Pro 555 is 20 MHz higher, than GeForce GTX 660M.
  • GeForce GTX 660M is manufactured by 28 nm process technology, and Radeon Pro 555 - by 14 nm process technology.
  • Memory clock speed of Radeon Pro 555 is 3080 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 555 in Assassin's Creed Odyssey is 122% more, than GeForce GTX 660M.

Full Specs

  GeForce GTX 660M Radeon Pro 555
Architecture Kepler Polaris
Code name N13E-GE Polaris 21
Type Laptop Mobile workstation
Release date 22 March 2012 5 June 2017
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 40.80
Floating-point performance 729.6 gflops 1,306 gflops
Memory bus width 128bit 128 Bit
Memory clock speed 2000 MHz 5080 MHz
Memory bandwidth 64.0 GB/s 81.6 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
Laptop size large large
Optimus +
  Check Price Check Price