Mobility Radeon HD 4870 vs Radeon Pro 555

If you are going to buy a new graphics card and are choosing between Mobility Radeon HD 4870 and Radeon Pro 555, there are a couple of things to consider. Cards with more VRAM in general perform better and allow you to play on higher graphics settings. Size also makes a difference. A model with a large heatsink can occupy up to three expansion slots on a motherboard. Be sure you have enough room in your PC case. When comparing GPUs with different architectures, more processing cores and even higher TFLOPS will not always translate to better performance. To help you decide which GPU you need, we have measured frame rates in a number of popular games. For more on how the Mobility Radeon HD 4870 stacks up against Radeon Pro 555, check out specs charts below.

Mobility Radeon HD 4870 and Radeon Pro 555 are Laptop Graphics Cards

Note: Mobility Radeon HD 4870 and Radeon Pro 555 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 4870 or Radeon Pro 555 here:

Main Specs

  Mobility Radeon HD 4870 Radeon Pro 555
Power consumption (TDP) 75 Watt
Interface PCIe 2.0 x16 PCIe 3.0 x8
Supplementary power connectors None
Memory type GDDR5 GDDR5
Maximum RAM amount 1 GB 2 GB
Display Connectors No outputs No outputs
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  • Mobility Radeon HD 4870 is connected by PCIe 2.0 x16, and Radeon Pro 555 uses PCIe 3.0 x8 interface.
  • Radeon Pro 555 has 1 GB more memory, than Mobility Radeon HD 4870.
  • Mobility Radeon HD 4870 is used in Laptops, and Radeon Pro 555 - in Mobile workstations.
  • Mobility Radeon HD 4870 is build with Terascale 1 architecture, and Radeon Pro 555 - with Polaris.
  • Core clock speed of Radeon Pro 555 is 305 MHz higher, than Mobility Radeon HD 4870.
  • Mobility Radeon HD 4870 is manufactured by 55 nm process technology, and Radeon Pro 555 - by 14 nm process technology.
  • Memory clock speed of Radeon Pro 555 is 4192 MHz higher, than Mobility Radeon HD 4870.

Game benchmarks

high / 1080p 7−8 16−18
ultra / 1080p 4−5 9−10
QHD / 1440p 0−1 4−5
4K / 2160p 4−5
low / 720p 16−18 30−35
medium / 1080p 8−9 20−22
The average gaming FPS of Radeon Pro 555 in Assassin's Creed Odyssey is 122% more, than Mobility Radeon HD 4870.

Full Specs

  Mobility Radeon HD 4870 Radeon Pro 555
Architecture Terascale 1 Polaris
Code name M98-XT Polaris 21
Type Laptop Mobile workstation
Release date 9 January 2009 5 June 2017
Pipelines 800 768
Core clock speed 550 MHz 855 MHz
Transistor count 956 million 3,000 million
Manufacturing process technology 55 nm 14 nm
Texture fill rate 22.00 40.80
Floating-point performance 880.0 gflops 1,306 gflops
Memory bus width 256 Bit 128 Bit
Memory clock speed 888 MHz 5080 MHz
Memory bandwidth 56.83 GB/s 81.6 GB/s
Shared memory - -
DirectX 10.1 (10_1) 12 (12_0)
Shader Model 4.1 6.4
OpenGL 3.3 4.6
OpenCL 1.1 2.0
Vulkan N/A 1.2.131
FreeSync +
Laptop size large large
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