Mobility Radeon HD 5870 Crossfire vs Radeon HD 6990

Find out if it is worth upgrading your current GPU setup by comparing Mobility Radeon HD 5870 Crossfire and Radeon HD 6990. 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 Mobility Radeon HD 5870 Crossfire and Radeon HD 6990. 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.

Mobility Radeon HD 5870 Crossfire is a Laptop Graphics Card

Note: Mobility Radeon HD 5870 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 Mobility Radeon HD 5870 Crossfire here:

Main Specs

  Mobility Radeon HD 5870 Crossfire Radeon HD 6990
Power consumption (TDP) 120 Watt 375 Watt
Interface PCIe 2.0 x16
Supplementary power connectors 2x 8-pin
Memory type DDR3, GDDR3, GDDR5 GDDR5
Maximum RAM amount 2x1 GB 2 GB
Display Connectors 1x DVI, 4x mini-DisplayPort
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  • Radeon HD 6990 has 212% more power consumption, than Mobility Radeon HD 5870 Crossfire.
  • Mobility Radeon HD 5870 Crossfire and Radeon HD 6990 have maximum RAM of 2 GB.
  • Mobility Radeon HD 5870 Crossfire is used in Laptops, and Radeon HD 6990 - in Desktops.
  • Mobility Radeon HD 5870 Crossfire is build with Terascale 2 architecture, and Radeon HD 6990 - with TeraScale 3.
  • Core clock speed of Radeon HD 6990 is 130 MHz higher, than Mobility Radeon HD 5870 Crossfire.
  • Mobility Radeon HD 5870 Crossfire and Radeon HD 6990 are manufactured by 40 nm process technology.
  • Memory clock speed of Radeon HD 6990 is 4000 MHz higher, than Mobility Radeon HD 5870 Crossfire.

Game benchmarks

high / 1080p 16−18 14−16
ultra / 1080p 9−10 9−10
QHD / 1440p 4−5 3−4
low / 720p 30−35 30−35
medium / 1080p 18−20 18−20
The average gaming FPS of Mobility Radeon HD 5870 Crossfire in Assassin's Creed Odyssey is 6% more, than Radeon HD 6990.

Full Specs

  Mobility Radeon HD 5870 Crossfire Radeon HD 6990
Architecture Terascale 2 TeraScale 3
Code name Broadway-XT Antilles
Type Laptop Desktop
Release date 7 January 2010 8 March 2011
Pipelines 1600 1536
Core clock speed 700 MHz 830 MHz
Transistor count 2,640 million
Manufacturing process technology 40 nm 40 nm
Texture fill rate 79.68
Floating-point performance 2x 2,549.8 gflops
Length 295 mm
Memory bus width 128 Bit 256 Bit
Memory clock speed 1000 MHz 5000 MHz
Memory bandwidth 160.0 GB/s
Shared memory -
DirectX DirectX 11, Shader 5.0 11.2 (11_0)
Shader Model 5.0
OpenGL 4.4
OpenCL 1.2
Vulkan N/A
Bitcoin / BTC (SHA256) 265 Mh/s
Laptop size large
Ethereum / ETH (DaggerHashimoto) 24 Mh/s
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