Radeon R9 M485X vs Radeon RX 550X

Find out if it is worth upgrading your current GPU setup by comparing Radeon R9 M485X and Radeon RX 550X. Here you can take a closer look at graphics cards specs, such as core clock speed, memory type and size, display connectors, etc. The price, overall benchmark and gaming performances are usually defining factors when it comes to choosing between Radeon R9 M485X and Radeon RX 550X. Make sure that the graphics card has compatible dimensions and will properly fit in your new or current computer case. Also these graphics cards may have different system power recommendations, so take that into consideration and upgrade your PSU if necessary.

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 R9 M485X Radeon RX 550X
Power consumption (TDP) 250 Watt 50 Watt
Interface MXM-B (3.0) PCIe 3.0 x8
Supplementary power connectors None None
Memory type GDDR5 GDDR5
Maximum RAM amount 8 GB MB 4 GB
Display Connectors No outputs 1x DVI, 1x HDMI, 1x DisplayPort
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  • Radeon R9 M485X has 400% more power consumption, than Radeon RX 550X.
  • Radeon R9 M485X is connected by MXM-B (3.0), and Radeon RX 550X uses PCIe 3.0 x8 interface.
  • Radeon R9 M485X has 4 GB more memory, than Radeon RX 550X.
  • Radeon R9 M485X is used in Laptops, and Radeon RX 550X - in Desktops.
  • Radeon R9 M485X is build with GCN 3 architecture, and Radeon RX 550X - with GCN 4.0.
  • Core clock speed of Radeon RX 550X is 377 MHz higher, than Radeon R9 M485X.
  • Radeon R9 M485X is manufactured by 28 nm process technology, and Radeon RX 550X - by 14 nm process technology.
  • Memory clock speed of Radeon RX 550X is 1000 MHz higher, than Radeon R9 M485X.

Game benchmarks

high / 1080p 24−27 10−11
ultra / 1080p 14−16 6−7
QHD / 1440p 10−11 0−1
4K / 2160p 6−7
low / 720p 45−50 21−24
medium / 1080p 30−35 12−14
The average gaming FPS of Radeon R9 M485X in Assassin's Creed Odyssey is 130% more, than Radeon RX 550X.

Full Specs

  Radeon R9 M485X Radeon RX 550X
Architecture GCN 3 GCN 4.0
Code name Amethyst Lexa
Type Laptop Desktop
Release date 14 May 2016 16 December 2018
Pipelines 2048 512
Core clock speed 723 MHz 1100 MHz
Boost Clock 1183 MHz
Transistor count 5,000 million 2,200 million
Manufacturing process technology 28 nm 14 nm
Texture fill rate 92.54 37.86
Floating-point performance 2,961 gflops 1,211 gflops
Length 145 mm
Memory bus width 256 Bit 128 Bit
Memory clock speed 5000 MHz 6000 MHz
Memory bandwidth 160.0 GB/s 96 GB/s
Shared memory -
DirectX 12 (12_0) 12 (12_0)
Shader Model 6.3 6.4
OpenGL 4.6 4.6
OpenCL 2.0 2.0
Vulkan 1.2.131 1.2.131
Laptop size large
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