Radeon Pro 455 vs Radeon Pro 580X

In this comparison between Radeon Pro 455 and Radeon Pro 580X 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 Radeon Pro 455 will be the best choice, for others Radeon Pro 580X will be their preference. Study the comparison tables below and make your choice.

Radeon Pro 455 is a Laptop Graphics Card

Note: Radeon Pro 455 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 455 here:

Main Specs

  Radeon Pro 455 Radeon Pro 580X
Power consumption (TDP) 35 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 328% more power consumption, than Radeon Pro 455.
  • Radeon Pro 455 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 455.
  • Radeon Pro 455 is used in Mobile workstations, and Radeon Pro 580X - in Desktops.
  • Radeon Pro 455 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 455.
  • Radeon Pro 455 and Radeon Pro 580X are manufactured by 14 nm process technology.
  • Memory clock speed of Radeon Pro 580X is 1780 MHz higher, than Radeon Pro 455.

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 455.

Full Specs

  Radeon Pro 455 Radeon Pro 580X
Architecture Polaris GCN 4.0
Code name Polaris 11 Polaris 20
Type Mobile workstation Workstation
Release date 27 October 2016 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 41.04 172.8
Floating-point performance 1,313 gflops
Memory bus width 128 Bit 256 Bit
Memory clock speed 5000 MHz 6780 MHz
Memory bandwidth 81.28 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 +
Bitcoin / BTC (SHA256) 163 Mh/s
Laptop size large
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