GeForce GTX 1660 Ti mobile vs GeForce GTX 870M

When choosing between GeForce GTX 1660 Ti mobile and GeForce GTX 870M, 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 1660 Ti mobile and GeForce GTX 870M.

GeForce GTX 1660 Ti mobile and GeForce GTX 870M are Laptop Graphics Cards

Note: GeForce GTX 1660 Ti mobile and GeForce GTX 870M are only used in laptop graphics. They have 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 GeForce GTX 1660 Ti mobile or GeForce GTX 870M here:

Main Specs

  GeForce GTX 1660 Ti mobile GeForce GTX 870M
Power consumption (TDP) 100 Watt
Interface PCIe 3.0 x16 MXM-B (3.0)
Supplementary power connectors None
Memory type GDDR6 GDDR5
Maximum RAM amount 6 GB 6 GB
Display Connectors No outputs No outputs
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  • GeForce GTX 1660 Ti mobile is connected by PCIe 3.0 x16, and GeForce GTX 870M uses MXM-B (3.0) interface.
  • GeForce GTX 1660 Ti mobile and GeForce GTX 870M have maximum RAM of 6 GB.
  • Both cards are used in Laptops.
  • GeForce GTX 1660 Ti mobile is build with Turing architecture, and GeForce GTX 870M - with Kepler.
  • Core clock speed of GeForce GTX 1660 Ti mobile is 514 MHz higher, than GeForce GTX 870M.
  • GeForce GTX 1660 Ti mobile is manufactured by 12 nm process technology, and GeForce GTX 870M - by 28 nm process technology.

Game benchmarks

high / 1080p 50−55 16−18
ultra / 1080p 35−40 10−11
QHD / 1440p 27−30 4−5
4K / 2160p 16−18
low / 720p 80−85 35−40
medium / 1080p 60−65 21−24
The average gaming FPS of GeForce GTX 1660 Ti mobile in Assassin's Creed Odyssey is 188% more, than GeForce GTX 870M.

Full Specs

  GeForce GTX 1660 Ti mobile GeForce GTX 870M
Architecture Turing Kepler
Code name N18E-G0 N15P-GT
Type Laptop Laptop
Release date 23 April 2019 12 March 2014
Pipelines 1536 1344
Core clock speed 1455 MHz 941 MHz
Boost Clock 1590 MHz 967 MHz
Transistor count 6,600 million 3,540 million
Manufacturing process technology 12 nm 28 nm
Texture fill rate 152.6 108.3
Floating-point performance 2,599 gflops
Memory bus width 192 Bit 192 Bit
Memory clock speed 12000 MHz
Memory bandwidth 288.0 GB/s 120.0 GB/s
Shared memory - -
DirectX 12 (12_1) 12 (11_0)
Shader Model 6.5 5.1
OpenGL 4.6 4.5
OpenCL 1.2 1.1
Vulkan 1.2.131 1.1.126
CUDA 7.5 +
CUDA cores 1344
Bus support PCI Express 2.0, PCI Express 3.0
SLI options +
HDMI +
Bitcoin / BTC (SHA256) 82 Mh/s
Laptop size medium sized large
Standard memory configuration GDDR5
eDP 1.2 signal support Up to 3840x2160
LVDS signal support Up to 1920x1200
DisplayPort Multimode (DP++) support Up to 3840x2160
HDCP content protection +
7.1 channel HD audio on HDMI +
TrueHD and DTS-HD audio bitstreaming +
H.264, VC1, MPEG2 1080p video decoder +
Optimus +
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