Mobility Radeon HD 4870 X2 vs Radeon HD 6550A

In this comparison between Mobility Radeon HD 4870 X2 and Radeon HD 6550A you will find out which graphics card performs better in today's games. Bear in mind that third-party versions may have more efficient cooling and higher clock speeds. This will increase cards' performance, though not by much. In addition to raw power you should also take into account the dimensions. Thicker models simply will not fit into a small mini-ITX case. The resolution of your monitor also affects the choice, since 4K gameplay requires a more powerful GPU. And don't overspend on the graphics card. Other parts of your build may also need to be upgraded, save some money for the CPU or power supply. For some people Mobility Radeon HD 4870 X2 will be the best choice, for others Radeon HD 6550A will be their preference. Study the comparison tables below and make your choice.

Mobility Radeon HD 4870 X2 is a Laptop Graphics Card

Note: Mobility Radeon HD 4870 X2 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 4870 X2 here:

Main Specs

  Mobility Radeon HD 4870 X2 Radeon HD 6550A
Power consumption (TDP) 35 Watt
Interface PCIe 2.0 x16 MXM-A (3.0)
Memory type GDDR3, GDDR5 GDDR3
Maximum RAM amount 2 GB 2 GB
Display Connectors No outputs No outputs
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  • Mobility Radeon HD 4870 X2 is connected by PCIe 2.0 x16, and Radeon HD 6550A uses MXM-A (3.0) interface.
  • Mobility Radeon HD 4870 X2 and Radeon HD 6550A have maximum RAM of 2 GB.
  • Mobility Radeon HD 4870 X2 is used in Laptops, and Radeon HD 6550A - in Desktops.
  • Mobility Radeon HD 4870 X2 is build with Terascale 1 architecture, and Radeon HD 6550A - with TeraScale 2.
  • Both graphics cards have the same core clock speed.
  • Mobility Radeon HD 4870 X2 is manufactured by 55 nm process technology, and Radeon HD 6550A - by 40 nm process technology.
  • Memory clock speed of Radeon HD 6550A is 712 MHz higher, than Mobility Radeon HD 4870 X2.

Game benchmarks

high / 1080p 9−10 0−1
ultra / 1080p 5−6
QHD / 1440p 0−1 0−1
low / 720p 21−24 1−2
medium / 1080p 12−14 0−1
The average gaming FPS of Mobility Radeon HD 4870 X2 in Assassin's Creed Odyssey is 2100% more, than Radeon HD 6550A.

Full Specs

  Mobility Radeon HD 4870 X2 Radeon HD 6550A
Architecture Terascale 1 TeraScale 2
Code name M98-XT Pinewood
Type Laptop Desktop
Release date 9 January 2009 7 February 2011
Pipelines 1600 480
Core clock speed 550 MHz 550 MHz
Transistor count 956 million 627 million
Manufacturing process technology 55 nm 40 nm
Texture fill rate 22.00 13.20
Floating-point performance 2x 880.0 gflops 624.0 gflops
Memory bus width 256 Bit 128 Bit
Memory clock speed 888 MHz 1600 MHz
Memory bandwidth 89.6 GB/s 25.6 GB/s
Shared memory -
DirectX 10.1 (10_1) 11.2 (11_0)
Shader Model 4.1 5.0
OpenGL 3.3 4.4
OpenCL 1.1 1.2
Vulkan N/A N/A
Laptop size large
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