GeForce GTX 870M vs Iris Graphics 6100

When choosing between GeForce GTX 870M and Iris Graphics 6100, 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 870M and Iris Graphics 6100.

GeForce GTX 870M and Iris Graphics 6100 are Laptop Graphics Cards

Note: GeForce GTX 870M and Iris Graphics 6100 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 870M or Iris Graphics 6100 here:

Main Specs

  GeForce GTX 870M Iris Graphics 6100
Power consumption (TDP) 100 Watt 15 Watt
Interface MXM-B (3.0) PCIe 2.0 x1
Supplementary power connectors None None
Memory type GDDR5 System Shared
Maximum RAM amount 6 GB
Display Connectors No outputs No outputs
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  • GeForce GTX 870M has 566% more power consumption, than Iris Graphics 6100.
  • GeForce GTX 870M is connected by MXM-B (3.0), and Iris Graphics 6100 uses PCIe 2.0 x1 interface.
  • Both cards are used in Laptops.
  • GeForce GTX 870M is build with Kepler architecture, and Iris Graphics 6100 - with Gen. 8 Broadwell.
  • Core clock speed of GeForce GTX 870M is 641 MHz higher, than Iris Graphics 6100.
  • GeForce GTX 870M is manufactured by 28 nm process technology, and Iris Graphics 6100 - by 14 nm process technology.

Game benchmarks

high / 1080p 16−18 4−5
ultra / 1080p 10−11 3−4
QHD / 1440p 4−5 0−1
low / 720p 35−40 12−14
medium / 1080p 21−24 5−6
The average gaming FPS of GeForce GTX 870M in Assassin's Creed Odyssey is 250% more, than Iris Graphics 6100.

Full Specs

  GeForce GTX 870M Iris Graphics 6100
Architecture Kepler Gen. 8 Broadwell
Code name N15P-GT Broadwell GT3
Type Laptop Laptop
Release date 12 March 2014 5 January 2015
Pipelines 1344 48
Core clock speed 941 MHz 300 MHz
Boost Clock 967 MHz 1100 MHz
Transistor count 3,540 million 189 million
Manufacturing process technology 28 nm 14 nm
Texture fill rate 108.3 52.80
Floating-point performance 2,599 gflops
Memory bus width 192 Bit 64/128 Bit
Memory bandwidth 120.0 GB/s
Shared memory - +
DirectX 12 (11_0) 12 (11_1)
Shader Model 5.1 5.1
OpenGL 4.5 4.4
OpenCL 1.1 2.0
Vulkan 1.1.126 1.1.80
CUDA +
CUDA cores 1344
Bus support PCI Express 2.0, PCI Express 3.0
SLI options +
HDMI +
Bitcoin / BTC (SHA256) 82 Mh/s
Laptop size 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 +
Quick Sync +
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