Radeon HD 6870 vs Radeon Pro 555

When comparing Radeon HD 6870 and Radeon Pro 555, 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 6870 and Radeon Pro 555 is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.

Radeon Pro 555 is a Laptop Graphics Card

Note: Radeon Pro 555 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 Radeon Pro 555 here:

Main Specs

  Radeon HD 6870 Radeon Pro 555
Power consumption (TDP) 151 Watt 75 Watt
Interface PCIe 2.0 x16 PCIe 3.0 x8
Supplementary power connectors 2x 6-pin None
Memory type GDDR5 GDDR5
Maximum RAM amount 1 GB 2 GB
Display Connectors 2x DVI, 1x HDMI, 2x mini-DisplayPort No outputs
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  • Radeon HD 6870 has 101% more power consumption, than Radeon Pro 555.
  • Radeon HD 6870 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 Radeon HD 6870.
  • Radeon HD 6870 is used in Desktops, and Radeon Pro 555 - in Mobile workstations.
  • Radeon HD 6870 is build with Terascale 2 architecture, and Radeon Pro 555 - with Polaris.
  • Radeon HD 6870 is manufactured by 40 nm process technology, and Radeon Pro 555 - by 14 nm process technology.
  • Memory clock speed of Radeon Pro 555 is 4030 MHz higher, than Radeon HD 6870.

Game benchmarks

high / 1080p 10−12 16−18
ultra / 1080p 6−7 9−10
QHD / 1440p 1−2 4−5
4K / 2160p 4−5
low / 720p 24−27 30−35
medium / 1080p 12−14 20−22
The average gaming FPS of Radeon Pro 555 in Assassin's Creed Odyssey is 45% more, than Radeon HD 6870.

Full Specs

  Radeon HD 6870 Radeon Pro 555
Architecture Terascale 2 Polaris
Code name RV940 Barts Polaris 21
Type Desktop Mobile workstation
Release date 22 October 2010 5 June 2017
Pipelines 1120 768
Core clock speed 855 MHz
Boost Clock 900 MHz
Transistor count 1,700 million 3,000 million
Manufacturing process technology 40 nm 14 nm
Texture fill rate 50.40 40.80
Floating-point performance 2,016.0 gflops 1,306 gflops
Length 220 mm
Memory bus width 256 Bit 128 Bit
Memory clock speed 1050 MHz 5080 MHz
Memory bandwidth 134.4 GB/s 81.6 GB/s
Shared memory - -
DirectX 12 (12_0)
Shader Model 5.0 6.4
OpenGL 4.4 4.6
OpenCL 1.2 2.0
Vulkan 1.2.131
FreeSync +
Bus support PCIe 2.0 x16
HDMI +
Bitcoin / BTC (SHA256) 213 Mh/s
Laptop size large
Eyefinity +
Design reference
CrossFire +
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