Radeon HD 5850 vs Radeon RX 550X mobile

In this comparison between Radeon HD 5850 and Radeon RX 550X mobile 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 5850 will be the best choice, for others Radeon RX 550X mobile will be their preference. Study the comparison tables below and make your choice.

Radeon RX 550X mobile is a Laptop Graphics Card

Note: Radeon RX 550X mobile 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 RX 550X mobile here:

Main Specs

  Radeon HD 5850 Radeon RX 550X mobile
Power consumption (TDP) 151 Watt 50 Watt
Interface PCIe 2.0 x16 PCIe 3.0 x8
Supplementary power connectors 2x 6-pin
Memory type GDDR5 GDDR5
Maximum RAM amount 1 GB 4 GB
Display Connectors 2x DVI, 1x HDMI, 1x DisplayPort No outputs
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  • Radeon HD 5850 has 202% more power consumption, than Radeon RX 550X mobile.
  • Radeon HD 5850 is connected by PCIe 2.0 x16, and Radeon RX 550X mobile uses PCIe 3.0 x8 interface.
  • Radeon RX 550X mobile has 3 GB more memory, than Radeon HD 5850.
  • Radeon HD 5850 is used in Desktops, and Radeon RX 550X mobile - in Laptops.
  • Radeon HD 5850 is build with Terascale 2 architecture, and Radeon RX 550X mobile - with Polaris.
  • Core clock speed of Radeon RX 550X mobile is 451 MHz higher, than Radeon HD 5850.
  • Radeon HD 5850 is manufactured by 40 nm process technology, and Radeon RX 550X mobile - by 14 nm process technology.
  • Memory clock speed of Radeon RX 550X mobile is 5000 MHz higher, than Radeon HD 5850.

Game benchmarks

high / 1080p 9−10 14−16
ultra / 1080p 5−6 9−10
QHD / 1440p 0−1 3−4
low / 720p 21−24 30−35
medium / 1080p 12−14 20−22
The average gaming FPS of Radeon RX 550X mobile in Assassin's Creed Odyssey is 58% more, than Radeon HD 5850.

Full Specs

  Radeon HD 5850 Radeon RX 550X mobile
Architecture Terascale 2 Polaris
Code name Cypress Polaris 12
Type Desktop Laptop
Release date 30 September 2009 10 January 2019
Pipelines 1440 640
Core clock speed 725 MHz 1176 MHz
Boost Clock 1287 MHz
Transistor count 2,154 million 2,200 million
Manufacturing process technology 40 nm 14 nm
Texture fill rate 52.20 51.48
Floating-point performance 2,088.0 gflops
Length 241 mm
Memory bus width 256 Bit 128 Bit
Memory clock speed 2000 MHz 7000 MHz
Memory bandwidth 128.0 GB/s 96 GB/s
Shared memory -
DirectX 11.2 (11_0) 12 (12_0)
Shader Model 5.0 6.4
OpenGL 4.4 4.6
OpenCL 1.2 2.0
Vulkan N/A 1.2.131
FreeSync +
Laptop size large
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