Radeon HD 4890 vs Radeon Pro 455

In this comparison between Radeon HD 4890 and Radeon Pro 455 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 HD 4890 will be the best choice, for others Radeon Pro 455 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 HD 4890 Radeon Pro 455
Power consumption (TDP) 190 Watt 35 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 S-Video No outputs
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  • Radeon HD 4890 has 442% more power consumption, than Radeon Pro 455.
  • Radeon HD 4890 is connected by PCIe 2.0 x16, and Radeon Pro 455 uses PCIe 3.0 x8 interface.
  • Radeon Pro 455 has 1 GB more memory, than Radeon HD 4890.
  • Radeon HD 4890 is used in Desktops, and Radeon Pro 455 - in Mobile workstations.
  • Radeon HD 4890 is build with TeraScale architecture, and Radeon Pro 455 - with Polaris.
  • Core clock speed of Radeon Pro 455 is 5 MHz higher, than Radeon HD 4890.
  • Radeon HD 4890 is manufactured by 55 nm process technology, and Radeon Pro 455 - by 14 nm process technology.
  • Memory clock speed of Radeon Pro 455 is 1100 MHz higher, than Radeon HD 4890.

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 4890.

Full Specs

  Radeon HD 4890 Radeon Pro 455
Architecture TeraScale Polaris
Code name RV790 Polaris 11
Type Desktop Mobile workstation
Release date 2 April 2009 27 October 2016
Pipelines 800 768
Core clock speed 850 MHz 855 MHz
Transistor count 959 million 3,000 million
Manufacturing process technology 55 nm 14 nm
Texture fill rate 34.00 41.04
Floating-point performance 1,360.0 gflops 1,313 gflops
Length 241 mm
Memory bus width 256 Bit 128 Bit
Memory clock speed 3900 MHz 5000 MHz
Memory bandwidth 124.8 GB/s 81.28 GB/s
Shared memory -
DirectX 10.1 (10_1) 12 (12_0)
Shader Model 4.1 6.4
OpenGL 3.3 4.6
OpenCL 1.1 2.0
Vulkan N/A 1.2.131
FreeSync +
Bitcoin / BTC (SHA256) 163 Mh/s
Laptop size large
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