Radeon 550X vs Radeon R9 M485X

When comparing Radeon 550X and Radeon R9 M485X, 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 550X and Radeon R9 M485X is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.

Radeon R9 M485X is a Laptop Graphics Card

Note: Radeon R9 M485X 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 R9 M485X here:

Main Specs

  Radeon 550X Radeon R9 M485X
Power consumption (TDP) 50 Watt 250 Watt
Interface PCIe 3.0 x8 MXM-B (3.0)
Supplementary power connectors None None
Memory type GDDR5 GDDR5
Maximum RAM amount 2 GB 8 GB MB
Display Connectors 1x DVI, 1x HDMI, 1x DisplayPort No outputs
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  • Radeon R9 M485X has 400% more power consumption, than Radeon 550X.
  • Radeon 550X is connected by PCIe 3.0 x8, and Radeon R9 M485X uses MXM-B (3.0) interface.
  • Radeon R9 M485X has 6 GB more memory, than Radeon 550X.
  • Radeon 550X is used in Desktops, and Radeon R9 M485X - in Laptops.
  • Radeon 550X is build with GCN 4.0 architecture, and Radeon R9 M485X - with GCN 3.
  • Core clock speed of Radeon 550X is 359 MHz higher, than Radeon R9 M485X.
  • Radeon 550X is manufactured by 14 nm process technology, and Radeon R9 M485X - by 28 nm process technology.
  • Memory clock speed of Radeon 550X is 2000 MHz higher, than Radeon R9 M485X.

Game benchmarks

high / 1080p 7−8 24−27
ultra / 1080p 4−5 14−16
QHD / 1440p 0−1 10−11
4K / 2160p 6−7
low / 720p 16−18 45−50
medium / 1080p 9−10 30−35
The average gaming FPS of Radeon R9 M485X in Assassin's Creed Odyssey is 233% more, than Radeon 550X.

Full Specs

  Radeon 550X Radeon R9 M485X
Architecture GCN 4.0 GCN 3
Code name Lexa Amethyst
Type Desktop Laptop
Release date 27 March 2019 14 May 2016
Pipelines 512 2048
Core clock speed 1082 MHz 723 MHz
Boost Clock 1218 MHz
Transistor count 2,200 million 5,000 million
Manufacturing process technology 14 nm 28 nm
Texture fill rate 38.98 92.54
Floating-point performance 2,961 gflops
Length 145 mm
Memory bus width 128 Bit 256 Bit
Memory clock speed 7000 MHz 5000 MHz
Memory bandwidth 112.0 GB/s 160.0 GB/s
Shared memory -
DirectX 12 (12_0) 12 (12_0)
Shader Model 6.4 6.3
OpenGL 4.6 4.6
OpenCL 2.0 2.0
Vulkan 1.2.131 1.2.131
Laptop size large
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