Radeon HD 8770M vs Radeon Pro 455

If you are going to buy a new graphics card and are choosing between Radeon HD 8770M and Radeon Pro 455, 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 HD 8770M stacks up against Radeon Pro 455, check out specs charts below.

Radeon HD 8770M and Radeon Pro 455 are Laptop Graphics Cards

Note: Radeon HD 8770M and Radeon Pro 455 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 8770M or Radeon Pro 455 here:

Main Specs

  Radeon HD 8770M Radeon Pro 455
Power consumption (TDP) 35 Watt
Interface PCIe 3.0 x8 PCIe 3.0 x8
Supplementary power connectors None
Memory type GDDR5 GDDR5
Maximum RAM amount 2 GB 2 GB
Display Connectors No outputs No outputs
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  • Both video cards are using PCIe 3.0 x8 interface connection to a motherboard.
  • Radeon HD 8770M and Radeon Pro 455 have maximum RAM of 2 GB.
  • Radeon HD 8770M is used in Laptops, and Radeon Pro 455 - in Mobile workstations.
  • Radeon HD 8770M is build with GCN architecture, and Radeon Pro 455 - with Polaris.
  • Core clock speed of Radeon Pro 455 is 80 MHz higher, than Radeon HD 8770M.
  • Radeon HD 8770M is manufactured by 28 nm process technology, and Radeon Pro 455 - by 14 nm process technology.
  • Memory clock speed of Radeon Pro 455 is 500 MHz higher, than Radeon HD 8770M.

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 455 in Assassin's Creed Odyssey is 122% more, than Radeon HD 8770M.

Full Specs

  Radeon HD 8770M Radeon Pro 455
Architecture GCN Polaris
Code name Mars Polaris 11
Type Laptop Mobile workstation
Release date 16 November 2012 27 October 2016
Pipelines 384 768
Core clock speed 775 MHz 855 MHz
Boost Clock 825 MHz
Transistor count 950 million 3,000 million
Manufacturing process technology 28 nm 14 nm
Texture fill rate 19.80 41.04
Floating-point performance 633.6 gflops 1,313 gflops
Memory bus width 128 Bit 128 Bit
Memory clock speed 4500 MHz 5000 MHz
Memory bandwidth 72 GB/s 81.28 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) 163 Mh/s
Laptop size medium sized large
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