GeForce GTX 980M vs Radeon HD 6990M Crossfire

When choosing between GeForce GTX 980M and Radeon HD 6990M Crossfire, 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 980M and Radeon HD 6990M Crossfire.

GeForce GTX 980M and Radeon HD 6990M Crossfire are Laptop Graphics Cards

Note: GeForce GTX 980M and Radeon HD 6990M Crossfire 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 980M or Radeon HD 6990M Crossfire here:

Main Specs

  GeForce GTX 980M Radeon HD 6990M Crossfire
Interface MXM-B (3.0)
Supplementary power connectors None
Memory type GDDR5 GDDR5
Maximum RAM amount 8 GB 2x2 GB
Display Connectors No outputs
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  • GeForce GTX 980M has 6 GB more memory, than Radeon HD 6990M Crossfire.
  • Both cards are used in Laptops.
  • GeForce GTX 980M is build with Maxwell architecture, and Radeon HD 6990M Crossfire - with Terascale 2.
  • Core clock speed of GeForce GTX 980M is 323 MHz higher, than Radeon HD 6990M Crossfire.
  • GeForce GTX 980M is manufactured by 28 nm process technology, and Radeon HD 6990M Crossfire - by 40 nm process technology.
  • Memory clock speed of GeForce GTX 980M is 1600 MHz higher, than Radeon HD 6990M Crossfire.

Game benchmarks

high / 1080p 35−40 35−40
ultra / 1080p 24−27 21−24
QHD / 1440p 18−20 16−18
4K / 2160p 10−11 10−11
low / 720p 60−65 60−65
medium / 1080p 45−50 40−45
The average gaming FPS of GeForce GTX 980M in Assassin's Creed Odyssey is 3% more, than Radeon HD 6990M Crossfire.

Full Specs

  GeForce GTX 980M Radeon HD 6990M Crossfire
Architecture Maxwell Terascale 2
Code name GM204 Blackcomb XTX
Type Laptop Laptop
Release date 7 October 2014 12 July 2011
Pipelines 1536 2240
Core clock speed 1038 MHz 715 MHz
Boost Clock 1127 MHz
Transistor count 5,200 million 2x1700 Million
Manufacturing process technology 28 nm 40 nm
Texture fill rate 51.84
Floating-point performance 3,462 gflops
Memory bus width 256 Bit 256 Bit
Memory clock speed 2500 MHz 900 MHz
Memory bandwidth 160 GB/s
Shared memory - -
G-SYNC support +
DirectX 12 (12_1) DirectX 11, Shader 5.0
Shader Model 6.4
OpenGL 4.5
OpenCL 1.1
Vulkan 1.1.126
CUDA +
CUDA cores 1536
Bus support PCI Express 3.0
SLI options +
HDMI +
Bitcoin / BTC (SHA256) 383 Mh/s
Laptop size large large
DisplayPort Multimode (DP++) support +
H.264, VC1, MPEG2 1080p video decoder +
Optimus +
GameStream +
GeForce ShadowPlay +
GPU Boost 2.0
GameWorks +
BatteryBoost +
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