GeForce GTX 660 vs Radeon RX 5600M

If you are going to buy a new graphics card and are choosing between GeForce GTX 660 and Radeon RX 5600M, there are a couple of things to consider. Cards with more VRAM in general perform better and allow you to play on higher graphics settings. Size also makes a difference. A model with a large heatsink can occupy up to three expansion slots on a motherboard. Be sure you have enough room in your PC case. When comparing GPUs with different architectures, more processing cores and even higher TFLOPS will not always translate to better performance. To help you decide which GPU you need, we have measured frame rates in a number of popular games. For more on how the GeForce GTX 660 stacks up against Radeon RX 5600M, check out specs charts below.

Radeon RX 5600M is a Laptop Graphics Card

Note: Radeon RX 5600M 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 RX 5600M here:

Main Specs

  GeForce GTX 660 Radeon RX 5600M
Power consumption (TDP) 140 Watt 150 Watt
Interface PCIe 3.0 x16 PCIe 4.0 x16
Supplementary power connectors One 6-pin None
Memory type GDDR5 GDDR6
Maximum RAM amount 2 GB 6 GB
Display Connectors 2x DVI, 1x HDMI, 1x DisplayPort No outputs
  Check Price Check Price
  • Radeon RX 5600M has 7% more power consumption, than GeForce GTX 660.
  • GeForce GTX 660 is connected by PCIe 3.0 x16, and Radeon RX 5600M uses PCIe 4.0 x16 interface.
  • Radeon RX 5600M has 4 GB more memory, than GeForce GTX 660.
  • GeForce GTX 660 is used in Desktops, and Radeon RX 5600M - in Laptops.
  • GeForce GTX 660 is build with Kepler architecture, and Radeon RX 5600M - with Navi / RDNA.
  • GeForce GTX 660 is manufactured by 28 nm process technology, and Radeon RX 5600M - by 7 nm process technology.
  • Memory clock speed of Radeon RX 5600M 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 RX 5600M in Assassin's Creed Odyssey is 68% more, than GeForce GTX 660.

Full Specs

  GeForce GTX 660 Radeon RX 5600M
Architecture Kepler Navi / RDNA
Code name GK106 Navi 10
Type Desktop Laptop
Release date 6 September 2012 7 January 2020
Pipelines 960 2304
Core clock speed 980 MHz
Boost Clock 1033 MHz 1265 MHz
Transistor count 2,540 million 10,300 million
Manufacturing process technology 28 nm 7 nm
Texture fill rate 78.4 billion/sec 182.2
Floating-point performance 1,981 gflops
Length 9.5" (24.1 cm)
Memory bus width 192-bit GDDR5 192 Bit
Memory clock speed 6.0 GB/s 12000 MHz
Memory bandwidth 144.2 GB/s 288.0 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
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
  Check Price Check Price