Radeon HD 8870M vs Radeon Pro 555X

When comparing Radeon HD 8870M and Radeon Pro 555X, 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 Radeon HD 8870M and Radeon Pro 555X is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.

Radeon HD 8870M and Radeon Pro 555X are Laptop Graphics Cards

Note: Radeon HD 8870M and Radeon Pro 555X 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 Radeon HD 8870M or Radeon Pro 555X here:

Main Specs

  Radeon HD 8870M Radeon Pro 555X
Power consumption (TDP) 75 Watt
Interface PCIe 3.0 x16 PCIe 3.0 x8
Supplementary power connectors None
Memory type GDDR5, DDR3 GDDR5
Maximum RAM amount 2 GB 2 GB
Display Connectors No outputs No outputs
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  • Radeon HD 8870M is connected by PCIe 3.0 x16, and Radeon Pro 555X uses PCIe 3.0 x8 interface.
  • Radeon HD 8870M and Radeon Pro 555X have maximum RAM of 2 GB.
  • Radeon HD 8870M is used in Laptops, and Radeon Pro 555X - in Mobile workstations.
  • Radeon HD 8870M is build with GCN architecture, and Radeon Pro 555X - with Polaris.
  • Core clock speed of Radeon Pro 555X is 130 MHz higher, than Radeon HD 8870M.
  • Radeon HD 8870M is manufactured by 28 nm process technology, and Radeon Pro 555X - by 14 nm process technology.
  • Memory clock speed of Radeon Pro 555X is 580 MHz higher, than Radeon HD 8870M.

Game benchmarks

high / 1080p 7−8 16−18
ultra / 1080p 4−5 10−11
QHD / 1440p 0−1 4−5
4K / 2160p 4−5
low / 720p 18−20 30−35
medium / 1080p 9−10 21−24
The average gaming FPS of Radeon Pro 555X in Assassin's Creed Odyssey is 100% more, than Radeon HD 8870M.

Full Specs

  Radeon HD 8870M Radeon Pro 555X
Architecture GCN Polaris
Code name Venus Polaris 21
Type Laptop Mobile workstation
Release date 18 December 2012 5 June 2017
Pipelines 640 768
Core clock speed 725 MHz 855 MHz
Boost Clock 775 MHz
Transistor count 1,500 million 3,000 million
Manufacturing process technology 28 nm 14 nm
Texture fill rate 31.00 43.54
Floating-point performance 992.0 gflops
Memory bus width 128 Bit 128 Bit
Memory clock speed 4500 MHz 5080 MHz
Memory bandwidth 72 GB/s 81.6 GB/s
Shared memory - -
DirectX 12 (11_1) 12 (12_0)
Shader Model 5.1 6.4
OpenGL 4.6 4.6
OpenCL 1.2 2.0
Vulkan 1.2.131 1.2.131
FreeSync +
Bitcoin / BTC (SHA256) 107 Mh/s
Laptop size large large
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