GeForce GTX 660 vs Radeon Pro 5500M

When comparing GeForce GTX 660 and Radeon Pro 5500M, 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 660 and Radeon Pro 5500M is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.

Radeon Pro 5500M is a Laptop Graphics Card

Note: Radeon Pro 5500M is only used in laptop graphics. It has 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 Radeon Pro 5500M here:

Main Specs

  GeForce GTX 660 Radeon Pro 5500M
Power consumption (TDP) 140 Watt 85 Watt
Interface PCIe 3.0 x16 PCIe 4.0 x8
Supplementary power connectors One 6-pin None
Memory type GDDR5 GDDR6
Maximum RAM amount 2 GB 8 GB
Display Connectors 2x DVI, 1x HDMI, 1x DisplayPort No outputs
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  • GeForce GTX 660 has 64% more power consumption, than Radeon Pro 5500M.
  • GeForce GTX 660 is connected by PCIe 3.0 x16, and Radeon Pro 5500M uses PCIe 4.0 x8 interface.
  • Radeon Pro 5500M has 6 GB more memory, than GeForce GTX 660.
  • GeForce GTX 660 is used in Desktops, and Radeon Pro 5500M - in Mobile workstations.
  • GeForce GTX 660 is build with Kepler architecture, and Radeon Pro 5500M - with Navi / RDNA.
  • GeForce GTX 660 is manufactured by 28 nm process technology, and Radeon Pro 5500M - by 7 nm process technology.
  • Memory clock speed of Radeon Pro 5500M is 11994 MHz higher, than GeForce GTX 660.

Game benchmarks

high / 1080p 20−22 35−40
ultra / 1080p 12−14 21−24
QHD / 1440p 6−7 16−18
4K / 2160p 5−6 10−11
low / 720p 40−45 60−65
medium / 1080p 24−27 40−45
The average gaming FPS of Radeon Pro 5500M in Assassin's Creed Odyssey is 68% more, than GeForce GTX 660.

Full Specs

  GeForce GTX 660 Radeon Pro 5500M
Architecture Kepler Navi / RDNA
Code name GK106 Navi 14
Type Desktop Mobile workstation
Release date 6 September 2012 13 November 2019
Pipelines 960 1536
Core clock speed 980 MHz
Boost Clock 1033 MHz 1300 MHz
Transistor count 2,540 million 6,400 million
Manufacturing process technology 28 nm 7 nm
Texture fill rate 78.4 billion/sec 139.2
Floating-point performance 1,981 gflops
Length 9.5" (24.1 cm)
Memory bus width 192-bit GDDR5 128 Bit
Memory clock speed 6.0 GB/s 12000 MHz
Memory bandwidth 144.2 GB/s 192.0 GB/s
Shared memory -
DirectX 12 (11_0) 12 (12_1)
Shader Model 5.1 6.5
OpenGL 4.3 4.6
OpenCL 1.2 2.0
Vulkan 1.1.126 1.2.131
CUDA +
CUDA cores 960
Bus support PCI Express 3.0
Height 4.376" (11.1 cm)
SLI options +
Multi monitor support 4 displays
HDMI +
HDCP +
Maximum VGA resolution 2048x1536
Audio input for HDMI Internal
3D Blu-Ray +
3D Gaming +
3D Vision +
Bitcoin / BTC (SHA256) 66 Mh/s
Laptop size medium sized
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