Radeon HD 7870M vs Radeon Pro 455

If you are going to buy a new graphics card and are choosing between Radeon HD 7870M 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 7870M stacks up against Radeon Pro 455, check out specs charts below.

Radeon HD 7870M and Radeon Pro 455 are Laptop Graphics Cards

Note: Radeon HD 7870M 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 7870M or Radeon Pro 455 here:

Main Specs

  Radeon HD 7870M Radeon Pro 455
Power consumption (TDP) 45 Watt 35 Watt
Interface PCIe 3.0 x16 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
  Check Price Check Price
  • Radeon HD 7870M has 28% more power consumption, than Radeon Pro 455.
  • Radeon HD 7870M is connected by PCIe 3.0 x16, and Radeon Pro 455 uses PCIe 3.0 x8 interface.
  • Radeon HD 7870M and Radeon Pro 455 have maximum RAM of 2 GB.
  • Radeon HD 7870M is used in Laptops, and Radeon Pro 455 - in Mobile workstations.
  • Radeon HD 7870M is build with GCN architecture, and Radeon Pro 455 - with Polaris.
  • Core clock speed of Radeon Pro 455 is 55 MHz higher, than Radeon HD 7870M.
  • Radeon HD 7870M is manufactured by 28 nm process technology, and Radeon Pro 455 - by 14 nm process technology.
  • Memory clock speed of Radeon Pro 455 is 1000 MHz higher, than Radeon HD 7870M.

Game benchmarks

high / 1080p 6−7 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 7870M.

Full Specs

  Radeon HD 7870M Radeon Pro 455
Architecture GCN Polaris
Code name Heathrow XT Polaris 11
Type Laptop Mobile workstation
Release date 24 April 2012 27 October 2016
Pipelines 640 768
Core clock speed 800 MHz 855 MHz
Transistor count 1,500 million 3,000 million
Manufacturing process technology 28 nm 14 nm
Texture fill rate 32.00 41.04
Floating-point performance 1,024 gflops 1,313 gflops
Memory bus width 128 Bit 128 Bit
Memory clock speed 4000 MHz 5000 MHz
Memory bandwidth 64 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 large large
  Check Price Check Price