Radeon HD 6990M Crossfire vs Radeon RX 560X

When comparing Radeon HD 6990M Crossfire and Radeon RX 560X, we look primarily at benchmarks and game tests. But it is not only about the numbers. Often you can find third-party models with higher clock speeds, better cooling, or a customizable RGB lighting. Not all of them will have all the features you need. Another thing to consider is the port selection. Most graphics cards have at least one DisplayPort and HDMI interface, but some monitors require DVI. Before you buy, check the TDP of the graphics card - this characteristic will help you estimate the consumption of the graphics card. You may even have to upgrade your PSU to meet its requirements. An important factor when choosing between Radeon HD 6990M Crossfire and Radeon RX 560X is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.

Radeon HD 6990M Crossfire is a Laptop Graphics Card

Note: Radeon HD 6990M Crossfire 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 HD 6990M Crossfire here:

Main Specs

  Radeon HD 6990M Crossfire Radeon RX 560X
Power consumption (TDP) 75 Watt
Interface PCIe 3.0 x8
Supplementary power connectors None
Memory type GDDR5 GDDR5
Maximum RAM amount 2x2 GB 4 GB
Display Connectors 1x DVI, 1x HDMI, 1x DisplayPort
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  • Radeon RX 560X has 2 GB more memory, than Radeon HD 6990M Crossfire.
  • Radeon HD 6990M Crossfire is used in Laptops, and Radeon RX 560X - in Desktops.
  • Radeon HD 6990M Crossfire is build with Terascale 2 architecture, and Radeon RX 560X - with GCN 4.0.
  • Core clock speed of Radeon RX 560X is 460 MHz higher, than Radeon HD 6990M Crossfire.
  • Radeon HD 6990M Crossfire is manufactured by 40 nm process technology, and Radeon RX 560X - by 14 nm process technology.
  • Memory clock speed of Radeon RX 560X is 6100 MHz higher, than Radeon HD 6990M Crossfire.

Game benchmarks

high / 1080p 35−40 18−20
ultra / 1080p 21−24 10−11
QHD / 1440p 16−18 4−5
4K / 2160p 10−11 4−5
low / 720p 60−65 35−40
medium / 1080p 40−45 21−24
The average gaming FPS of Radeon HD 6990M Crossfire in Assassin's Creed Odyssey is 100% more, than Radeon RX 560X.

Full Specs

  Radeon HD 6990M Crossfire Radeon RX 560X
Architecture Terascale 2 GCN 4.0
Code name Blackcomb XTX Polaris 21
Type Laptop Desktop
Release date 12 July 2011 11 April 2018
Pipelines 2240 1024
Core clock speed 715 MHz 1175 MHz
Boost Clock 1275 MHz
Transistor count 2x1700 Million 3,000 million
Manufacturing process technology 40 nm 14 nm
Texture fill rate 81.60
Floating-point performance 2,611 gflops
Length 170 mm
Memory bus width 256 Bit 128 Bit
Memory clock speed 900 MHz 7000 MHz
Memory bandwidth 112.0 GB/s
Shared memory -
DirectX DirectX 11, Shader 5.0 12 (12_0)
Shader Model 6.4
OpenGL 4.6
OpenCL 2.0
Vulkan 1.2.131
Laptop size large
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