GeForce GTX 660 vs Radeon RX Vega M GH

Find out if it is worth upgrading your current GPU setup by comparing GeForce GTX 660 and Radeon RX Vega M GH. 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 660 and Radeon RX Vega M GH. 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.

Radeon RX Vega M GH is a Laptop Graphics Card

Note: Radeon RX Vega M GH 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 GH here:

Main Specs

  GeForce GTX 660 Radeon RX Vega M GH
Power consumption (TDP) 140 Watt 100 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
  Check Price Check Price
  • GeForce GTX 660 has 40% more power consumption, than Radeon RX Vega M GH.
  • GeForce GTX 660 is connected by PCIe 3.0 x16, and Radeon RX Vega M GH uses IGP interface.
  • Radeon RX Vega M GH has 2 GB more memory, than GeForce GTX 660.
  • GeForce GTX 660 is used in Desktops, and Radeon RX Vega M GH - in Laptops.
  • GeForce GTX 660 is build with Kepler architecture, and Radeon RX Vega M GH - with Vega.
  • Core clock speed of Radeon RX Vega M GH is 83 MHz higher, than GeForce GTX 660.
  • GeForce GTX 660 is manufactured by 28 nm process technology, and Radeon RX Vega M GH - by 14 nm process technology.
  • Memory clock speed of Radeon RX Vega M GH is 1594 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 Vega M GH in Assassin's Creed Odyssey is 68% more, than GeForce GTX 660.

Full Specs

  GeForce GTX 660 Radeon RX Vega M GH
Architecture Kepler Vega
Code name GK106 Vega Kaby Lake-G
Type Desktop Laptop
Release date 6 September 2012 7 January 2018
Pipelines 960 1536
Core clock speed 980 MHz 1063 MHz
Boost Clock 1033 MHz 1190 MHz
Transistor count 2,540 million 5,000 million
Manufacturing process technology 28 nm 14 nm
Texture fill rate 78.4 billion/sec 114.2
Floating-point performance 1,981 gflops 3,656 gflops
Length 9.5" (24.1 cm)
Memory bus width 192-bit GDDR5 1024 Bit
Memory clock speed 6.0 GB/s 1600 MHz
Memory bandwidth 144.2 GB/s 204.8 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
Laptop size medium sized
  Check Price Check Price