GeForce GTX 660 Ti vs Radeon RX Vega M GL 870

In this comparison between GeForce GTX 660 Ti and Radeon RX Vega M GL 870 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 Ti will be the best choice, for others Radeon RX Vega M GL 870 will be their preference. Study the comparison tables below and make your choice.

Radeon RX Vega M GL 870 is a Laptop Graphics Card

Note: Radeon RX Vega M GL 870 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 870 here:

Main Specs

  GeForce GTX 660 Ti Radeon RX Vega M GL 870
Power consumption (TDP) 150 Watt
Interface PCIe 3.0 x16
Supplementary power connectors Two 6-pin
Memory type GDDR5 HBM2
Maximum RAM amount 2 GB 4 GB
Display Connectors 2x DVI, 1x HDMI, 1x DisplayPort
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  • Radeon RX Vega M GL 870 has 2 GB more memory, than GeForce GTX 660 Ti.
  • GeForce GTX 660 Ti is used in Desktops, and Radeon RX Vega M GL 870 - in Laptops.
  • GeForce GTX 660 Ti is build with Kepler architecture, and Radeon RX Vega M GL 870 - with Vega.
  • Core clock speed of Radeon RX Vega M GL 870 is 16 MHz higher, than GeForce GTX 660 Ti.
  • GeForce GTX 660 Ti is manufactured by 28 nm process technology, and Radeon RX Vega M GL 870 - by 14 nm process technology.

Game benchmarks

high / 1080p 21−24 35−40
ultra / 1080p 12−14 21−24
QHD / 1440p 8−9 16−18
4K / 2160p 5−6 10−11
low / 720p 40−45 60−65
medium / 1080p 27−30 40−45
The average gaming FPS of Radeon RX Vega M GL 870 in Assassin's Creed Odyssey is 60% more, than GeForce GTX 660 Ti.

Full Specs

  GeForce GTX 660 Ti Radeon RX Vega M GL 870
Architecture Kepler Vega
Code name GK104 Vega Kaby Lake-G
Type Desktop Laptop
Release date 16 August 2012 7 January 2018
Pipelines 1344 1280
Core clock speed 915 MHz 931 MHz
Boost Clock 980 MHz 1011 MHz
Transistor count 3,540 million
Manufacturing process technology 28 nm 14 nm
Texture fill rate 102.5 billion/sec
Floating-point performance 2,459.5 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 1344
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) 99 Mh/s
Laptop size medium sized
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