Mobility Radeon HD 5870 Crossfire vs Radeon HD 6850M

When comparing Mobility Radeon HD 5870 Crossfire and Radeon HD 6850M, 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 Mobility Radeon HD 5870 Crossfire and Radeon HD 6850M is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.

Mobility Radeon HD 5870 Crossfire and Radeon HD 6850M are Laptop Graphics Cards

Note: Mobility Radeon HD 5870 Crossfire and Radeon HD 6850M 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 Mobility Radeon HD 5870 Crossfire or Radeon HD 6850M here:

Main Specs

  Mobility Radeon HD 5870 Crossfire Radeon HD 6850M
Power consumption (TDP) 120 Watt 50 Watt
Interface PCIe 2.0 x16
Memory type DDR3, GDDR3, GDDR5 DDR3, GDDR5
Maximum RAM amount 2x1 GB 1 GB
Display Connectors No outputs
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  • Mobility Radeon HD 5870 Crossfire has 140% more power consumption, than Radeon HD 6850M.
  • Mobility Radeon HD 5870 Crossfire has 1 GB more memory, than Radeon HD 6850M.
  • Both cards are used in Laptops.
  • Mobility Radeon HD 5870 Crossfire and Radeon HD 6850M are build with Terascale 2 architecture.
  • Core clock speed of Mobility Radeon HD 5870 Crossfire is 125 MHz higher, than Radeon HD 6850M.
  • Mobility Radeon HD 5870 Crossfire and Radeon HD 6850M are manufactured by 40 nm process technology.
  • Memory clock speed of Mobility Radeon HD 5870 Crossfire is 200 MHz higher, than Radeon HD 6850M.

Game benchmarks

high / 1080p 16−18 2−3
ultra / 1080p 9−10 0−1
QHD / 1440p 4−5 0−1
low / 720p 30−35 12−14
medium / 1080p 18−20 3−4
The average gaming FPS of Mobility Radeon HD 5870 Crossfire in Assassin's Creed Odyssey is 266% more, than Radeon HD 6850M.

Full Specs

  Mobility Radeon HD 5870 Crossfire Radeon HD 6850M
Architecture Terascale 2 Terascale 2
Code name Broadway-XT Granville Pro/LP
Type Laptop Laptop
Release date 7 January 2010 6 January 2011
Pipelines 1600 800
Core clock speed 700 MHz 575 / 675 MHz
Transistor count 1,040 million
Manufacturing process technology 40 nm 40 nm
Texture fill rate 27.00
Floating-point performance 1,080.0 gflops
Memory bus width 128 Bit 128 Bit
Memory clock speed 1000 MHz 800 MHz
Memory bandwidth 25.6 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
Laptop size large large
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