Radeon HD 4850 X2 vs Radeon Pro 455

When comparing Radeon HD 4850 X2 and Radeon Pro 455, we look primarily at benchmarks and game tests. But it is not only about the numbers. Often you can find third-party models with higher clock speeds, better cooling, or a customizable RGB lighting. Not all of them will have all the features you need. Another thing to consider is the port selection. Most graphics cards have at least one DisplayPort and HDMI interface, but some monitors require DVI. Before you buy, check the TDP of the graphics card - this characteristic will help you estimate the consumption of the graphics card. You may even have to upgrade your PSU to meet its requirements. An important factor when choosing between Radeon HD 4850 X2 and Radeon Pro 455 is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.

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 4850 X2 Radeon Pro 455
Power consumption (TDP) 250 Watt 35 Watt
Interface PCIe 2.0 x16 PCIe 3.0 x8
Supplementary power connectors 1x 6-pin + 1x 8-pin None
Memory type GDDR3 GDDR5
Maximum RAM amount 512 MB 2 GB
Display Connectors 4x DVI, 1x S-Video No outputs
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  • Radeon HD 4850 X2 has 614% more power consumption, than Radeon Pro 455.
  • Radeon HD 4850 X2 is connected by PCIe 2.0 x16, and Radeon Pro 455 uses PCIe 3.0 x8 interface.
  • Radeon HD 4850 X2 has 510 GB more memory, than Radeon Pro 455.
  • Radeon HD 4850 X2 is used in Desktops, and Radeon Pro 455 - in Mobile workstations.
  • Radeon HD 4850 X2 is build with TeraScale architecture, and Radeon Pro 455 - with Polaris.
  • Core clock speed of Radeon Pro 455 is 230 MHz higher, than Radeon HD 4850 X2.
  • Radeon HD 4850 X2 is manufactured by 55 nm process technology, and Radeon Pro 455 - by 14 nm process technology.
  • Memory clock speed of Radeon Pro 455 is 3010 MHz higher, than Radeon HD 4850 X2.

Game benchmarks

high / 1080p 3−4 16−18
ultra / 1080p 2−3 9−10
QHD / 1440p 0−1 4−5
4K / 2160p 4−5
low / 720p 14−16 30−35
medium / 1080p 5−6 20−22
The average gaming FPS of Radeon Pro 455 in Assassin's Creed Odyssey is 233% more, than Radeon HD 4850 X2.

Full Specs

  Radeon HD 4850 X2 Radeon Pro 455
Architecture TeraScale Polaris
Code name R700 Polaris 11
Type Desktop Mobile workstation
Release date 7 November 2008 27 October 2016
Pipelines 800 768
Core clock speed 625 MHz 855 MHz
Transistor count 956 million 3,000 million
Manufacturing process technology 55 nm 14 nm
Texture fill rate 25.00 41.04
Floating-point performance 2x 1,000.0 gflops 1,313 gflops
Length 267 mm
Memory bus width 256 Bit 128 Bit
Memory clock speed 1990 MHz 5000 MHz
Memory bandwidth 63.68 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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