GeForce GTX 660 vs Radeon RX Vega M GL

When choosing between GeForce GTX 660 and Radeon RX Vega M GL, it is worth examining the specifications of the models in detail. Do they meet the recommended requirements of modern games and software? Storage capacity, form factor, TDP, available ports, warranty and manufacturer support are all important. For example, the size of a PC case can limit the maximum thickness and length of the card. Often, instead of the factory overclocked card and RGB backlight, it is better to choose a reference model with a more efficient GPU. And make sure that your current power supply unit has the correct connection pins (using adapters is not recommended). This GPUs compare tool is meant to help you to choose the best graphics card for your build. Let's find out the difference between GeForce GTX 660 and Radeon RX Vega M GL.

Radeon RX Vega M GL is a Laptop Graphics Card

Note: Radeon RX Vega M GL 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 Vega M GL here:

Main Specs

  GeForce GTX 660 Radeon RX Vega M GL
Power consumption (TDP) 140 Watt 65 Watt
Interface PCIe 3.0 x16 IGP
Supplementary power connectors One 6-pin
Memory type GDDR5 HBM2
Maximum RAM amount 2 GB 4 GB
Display Connectors 2x DVI, 1x HDMI, 1x DisplayPort No outputs
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  • GeForce GTX 660 has 115% more power consumption, than Radeon RX Vega M GL.
  • GeForce GTX 660 is connected by PCIe 3.0 x16, and Radeon RX Vega M GL uses IGP interface.
  • Radeon RX Vega M GL has 2 GB more memory, than GeForce GTX 660.
  • GeForce GTX 660 is used in Desktops, and Radeon RX Vega M GL - in Laptops.
  • GeForce GTX 660 is build with Kepler architecture, and Radeon RX Vega M GL - with GCN 4.0.
  • Core clock speed of GeForce GTX 660 is 49 MHz higher, than Radeon RX Vega M GL.
  • GeForce GTX 660 is manufactured by 28 nm process technology, and Radeon RX Vega M GL - by 14 nm process technology.
  • Memory clock speed of Radeon RX Vega M GL is 1394 MHz higher, than GeForce GTX 660.

Game benchmarks

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

Full Specs

  GeForce GTX 660 Radeon RX Vega M GL
Architecture Kepler GCN 4.0
Code name GK106 Polaris 22
Type Desktop Laptop
Release date 6 September 2012 1 February 2018
Pipelines 960 1280
Core clock speed 980 MHz 931 MHz
Boost Clock 1033 MHz 1011 MHz
Transistor count 2,540 million 5,000 million
Manufacturing process technology 28 nm 14 nm
Texture fill rate 78.4 billion/sec 80.88
Floating-point performance 1,981 gflops 2,588 gflops
Length 9.5" (24.1 cm)
Memory bus width 192-bit GDDR5 1024 Bit
Memory clock speed 6.0 GB/s 1400 MHz
Memory bandwidth 144.2 GB/s 179.2 GB/s
Shared memory -
DirectX 12 (11_0) 12 (12_0)
Shader Model 5.1 6.4
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
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