Radeon HD 6990M Crossfire vs Radeon RX 570

Find out if it is worth upgrading your current GPU setup by comparing Radeon HD 6990M Crossfire and Radeon RX 570. 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 Crossfire and Radeon RX 570. 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 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 570
Power consumption (TDP) 120 Watt
Interface PCIe 3.0 x16
Supplementary power connectors 1x 6-pin
Memory type GDDR5 GDDR5
Maximum RAM amount 2x2 GB 8 GB
Display Connectors 1x DVI, 1x HDMI, 3x DisplayPort
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  • Radeon RX 570 has 6 GB more memory, than Radeon HD 6990M Crossfire.
  • Radeon HD 6990M Crossfire is used in Laptops, and Radeon RX 570 - in Desktops.
  • Radeon HD 6990M Crossfire is build with Terascale 2 architecture, and Radeon RX 570 - with Polaris.
  • Core clock speed of Radeon RX 570 is 453 MHz higher, than Radeon HD 6990M Crossfire.
  • Radeon HD 6990M Crossfire is manufactured by 40 nm process technology, and Radeon RX 570 - by 14 nm process technology.
  • Memory clock speed of Radeon RX 570 is 6100 MHz higher, than Radeon HD 6990M Crossfire.

Game benchmarks

high / 1080p 35−40 35−40
ultra / 1080p 21−24 21−24
QHD / 1440p 16−18 16−18
4K / 2160p 10−11 10−11
low / 720p 60−65 60−65
medium / 1080p 40−45 40−45
Radeon HD 6990M Crossfire and Radeon RX 570 have the same average FPS in Assassin's Creed Odyssey.

Full Specs

  Radeon HD 6990M Crossfire Radeon RX 570
Architecture Terascale 2 Polaris
Code name Blackcomb XTX Polaris 20 Ellesmere
Type Laptop Desktop
Release date 12 July 2011 18 April 2017
Pipelines 2240 2048
Core clock speed 715 MHz 1168 MHz
Boost Clock 1244 MHz
Transistor count 2x1700 Million 5,700 million
Manufacturing process technology 40 nm 14 nm
Texture fill rate 159.2
Floating-point performance 5,095 gflops
Length 241 mm
Memory bus width 256 Bit 256 Bit
Memory clock speed 900 MHz 7000 MHz
Memory bandwidth 224.0 GB/s
Shared memory - -
DirectX DirectX 11, Shader 5.0 12 (12_0)
Shader Model 6.4
OpenGL 4.6
OpenCL 2.0
Vulkan +
FreeSync +
Laptop size large
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