GeForce GTX 660 vs Radeon RX Vega 6

In this comparison between GeForce GTX 660 and Radeon RX Vega 6 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 660 will be the best choice, for others Radeon RX Vega 6 will be their preference. Study the comparison tables below and make your choice.

Radeon RX Vega 6 is a Laptop Graphics Card

Note: Radeon RX Vega 6 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 6 here:

Main Specs

  GeForce GTX 660 Radeon RX Vega 6
Power consumption (TDP) 140 Watt
Interface PCIe 3.0 x16
Supplementary power connectors One 6-pin
Memory type GDDR5
Maximum RAM amount 2 GB
Display Connectors 2x DVI, 1x HDMI, 1x DisplayPort
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  • GeForce GTX 660 is used in Desktops, and Radeon RX Vega 6 - in Laptops.
  • GeForce GTX 660 is build with Kepler architecture, and Radeon RX Vega 6 - with Vega.
  • GeForce GTX 660 is manufactured by 28 nm process technology, and Radeon RX Vega 6 - by 14 nm process technology.

Game benchmarks

high / 1080p 20−22 3−4
ultra / 1080p 12−14 1−2
QHD / 1440p 6−7 0−1
4K / 2160p 5−6
low / 720p 40−45 14−16
medium / 1080p 24−27 5−6
The average gaming FPS of GeForce GTX 660 in Assassin's Creed Odyssey is 316% more, than Radeon RX Vega 6.

Full Specs

  GeForce GTX 660 Radeon RX Vega 6
Architecture Kepler Vega
Code name GK106 Vega Raven Ridge
Type Desktop Laptop
Release date 6 September 2012 7 January 2018
Pipelines 960 384
Core clock speed 980 MHz
Boost Clock 1033 MHz 1100 MHz
Transistor count 2,540 million
Manufacturing process technology 28 nm 14 nm
Texture fill rate 78.4 billion/sec
Floating-point performance 1,981 gflops
Length 9.5" (24.1 cm)
Memory bus width 192-bit GDDR5
Memory clock speed 6.0 GB/s
Memory bandwidth 144.2 GB/s
Shared memory -
DirectX 12 (11_0) DirectX 12_1
Shader Model 5.1
OpenGL 4.3
OpenCL 1.2
Vulkan 1.1.126
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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