Radeon HD 6990M vs Radeon RX 560X

Find out if it is worth upgrading your current GPU setup by comparing Radeon HD 6990M and Radeon RX 560X. Here you can take a closer look at graphics cards specs, such as core clock speed, memory type and size, display connectors, etc. The price, overall benchmark and gaming performances are usually defining factors when it comes to choosing between Radeon HD 6990M and Radeon RX 560X. Make sure that the graphics card has compatible dimensions and will properly fit in your new or current computer case. Also these graphics cards may have different system power recommendations, so take that into consideration and upgrade your PSU if necessary.

Radeon HD 6990M is a Laptop Graphics Card

Note: Radeon HD 6990M 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 here:

Main Specs

  Radeon HD 6990M Radeon RX 560X
Power consumption (TDP) 100 Watt 75 Watt
Interface MXM-B (3.0) PCIe 3.0 x8
Supplementary power connectors None None
Memory type GDDR5 GDDR5
Maximum RAM amount 2 GB 4 GB
Display Connectors No outputs 1x DVI, 1x HDMI, 1x DisplayPort
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  • Radeon HD 6990M has 33% more power consumption, than Radeon RX 560X.
  • Radeon HD 6990M is connected by MXM-B (3.0), and Radeon RX 560X uses PCIe 3.0 x8 interface.
  • Radeon RX 560X has 2 GB more memory, than Radeon HD 6990M.
  • Radeon HD 6990M is used in Laptops, and Radeon RX 560X - in Desktops.
  • Radeon HD 6990M 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.
  • Radeon HD 6990M 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.

Game benchmarks

high / 1080p 14−16 18−20
ultra / 1080p 8−9 10−11
QHD / 1440p 3−4 4−5
4K / 2160p 4−5
low / 720p 30−33 35−40
medium / 1080p 16−18 21−24
The average gaming FPS of Radeon RX 560X in Assassin's Creed Odyssey is 20% more, than Radeon HD 6990M.

Full Specs

  Radeon HD 6990M 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 1120 1024
Core clock speed 715 MHz 1175 MHz
Boost Clock 1275 MHz
Transistor count 1,700 million 3,000 million
Manufacturing process technology 40 nm 14 nm
Texture fill rate 40.04 81.60
Floating-point performance 1,601.6 gflops 2,611 gflops
Length 170 mm
Memory bus width 256 Bit 128 Bit
Memory clock speed 900 MHz 7000 MHz
Memory bandwidth 115.2 GB/s 112.0 GB/s
Shared memory -
DirectX 11.2 (11_0) 12 (12_0)
Shader Model 5.0 6.4
OpenGL 4.4 4.6
OpenCL 1.2 2.0
Vulkan N/A 1.2.131
Laptop size large
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