GeForce GTX 860M vs Radeon HD 6990M

When choosing between GeForce GTX 860M and Radeon HD 6990M, 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 860M and Radeon HD 6990M.

GeForce GTX 860M and Radeon HD 6990M are Laptop Graphics Cards

Note: GeForce GTX 860M and Radeon HD 6990M 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 860M or Radeon HD 6990M here:

Main Specs

  GeForce GTX 860M Radeon HD 6990M
Power consumption (TDP) 75 Watt 100 Watt
Interface MXM-B (3.0) MXM-B (3.0)
Supplementary power connectors None None
Memory type GDDR5 GDDR5
Maximum RAM amount 4 GB 2 GB
Display Connectors No outputs No outputs
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  • Radeon HD 6990M has 33% more power consumption, than GeForce GTX 860M.
  • Both video cards are using MXM-B (3.0) interface connection to a motherboard.
  • GeForce GTX 860M has 2 GB more memory, than Radeon HD 6990M.
  • Both cards are used in Laptops.
  • GeForce GTX 860M is build with Maxwell architecture, and Radeon HD 6990M - with Terascale 2.
  • Core clock speed of GeForce GTX 860M is 82 MHz higher, than Radeon HD 6990M.
  • GeForce GTX 860M is manufactured by 28 nm process technology, and Radeon HD 6990M - by 40 nm process technology.

Game benchmarks

high / 1080p 16−18 14−16
ultra / 1080p 10−11 8−9
QHD / 1440p 5−6 3−4
4K / 2160p 4−5
low / 720p 30−35 30−33
medium / 1080p 21−24 16−18
The average gaming FPS of GeForce GTX 860M in Assassin's Creed Odyssey is 13% more, than Radeon HD 6990M.

Full Specs

  GeForce GTX 860M Radeon HD 6990M
Architecture Maxwell Terascale 2
Code name N15P-GX Blackcomb XTX
Type Laptop Laptop
Release date 12 March 2014 12 July 2011
Pipelines 640 1120
Core clock speed 797 MHz 715 MHz
Boost Clock 915 MHz
Transistor count 1,870 million 1,700 million
Manufacturing process technology 28 nm 40 nm
Texture fill rate 43.40 40.04
Floating-point performance 1,389 gflops 1,601.6 gflops
Memory bus width 128 Bit 256 Bit
Memory clock speed 900 MHz
Memory bandwidth 80.0 GB/s 115.2 GB/s
Shared memory - -
DirectX 12 (11_0) 11.2 (11_0)
Shader Model 5.1 5.0
OpenGL 4.5 4.4
OpenCL 1.1 1.2
Vulkan 1.1.126 N/A
CUDA +
CUDA cores 1152 or 640
Bus support PCI Express 2.0, PCI Express 3.0
SLI options +
HDMI +
Bitcoin / BTC (SHA256) 163 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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