Radeon Pro 555 vs Radeon Pro 580X

If you are going to buy a new graphics card and are choosing between Radeon Pro 555 and Radeon Pro 580X, 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 Radeon Pro 555 stacks up against Radeon Pro 580X, check out specs charts below.

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 Pro 555 Radeon Pro 580X
Power consumption (TDP) 75 Watt 150 Watt
Interface PCIe 3.0 x8 PCIe 3.0 x16
Supplementary power connectors None None
Memory type GDDR5 GDDR5
Maximum RAM amount 2 GB 8 GB
Display Connectors No outputs No outputs
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  • Radeon Pro 580X has 100% more power consumption, than Radeon Pro 555.
  • Radeon Pro 555 is connected by PCIe 3.0 x8, and Radeon Pro 580X uses PCIe 3.0 x16 interface.
  • Radeon Pro 580X has 6 GB more memory, than Radeon Pro 555.
  • Radeon Pro 555 is used in Mobile workstations, and Radeon Pro 580X - in Desktops.
  • Radeon Pro 555 is build with Polaris architecture, and Radeon Pro 580X - with GCN 4.0.
  • Core clock speed of Radeon Pro 580X is 245 MHz higher, than Radeon Pro 555.
  • Radeon Pro 555 and Radeon Pro 580X are manufactured by 14 nm process technology.
  • Memory clock speed of Radeon Pro 580X is 1700 MHz higher, than Radeon Pro 555.

Game benchmarks

high / 1080p 16−18 35−40
ultra / 1080p 9−10 24−27
QHD / 1440p 4−5 18−20
4K / 2160p 4−5 10−12
low / 720p 30−35 60−65
medium / 1080p 20−22 45−50
The average gaming FPS of Radeon Pro 580X in Assassin's Creed Odyssey is 135% more, than Radeon Pro 555.

Full Specs

  Radeon Pro 555 Radeon Pro 580X
Architecture Polaris GCN 4.0
Code name Polaris 21 Polaris 20
Type Mobile workstation Workstation
Release date 5 June 2017 18 March 2019
Pipelines 768 2304
Core clock speed 855 MHz 1100 MHz
Boost Clock 1200 MHz
Transistor count 3,000 million 5,700 million
Manufacturing process technology 14 nm 14 nm
Texture fill rate 40.80 172.8
Floating-point performance 1,306 gflops
Memory bus width 128 Bit 256 Bit
Memory clock speed 5080 MHz 6780 MHz
Memory bandwidth 81.6 GB/s 217.0 GB/s
Shared memory -
DirectX 12 (12_0) 12 (12_0)
Shader Model 6.4 6.4
OpenGL 4.6 4.6
OpenCL 2.0 2.0
Vulkan 1.2.131 1.2.131
FreeSync +
Laptop size large
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