Radeon HD 7770 vs Radeon R9 M485X

Find out if it is worth upgrading your current GPU setup by comparing Radeon HD 7770 and Radeon R9 M485X. 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 HD 7770 and Radeon R9 M485X. 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 HD 7770 Radeon R9 M485X
Power consumption (TDP) 250 Watt
Interface MXM-B (3.0)
Supplementary power connectors None
Memory type GDDR5 GDDR5
Maximum RAM amount 2 GB 8 GB MB
Display Connectors No outputs
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  • Radeon R9 M485X has 6 GB more memory, than Radeon HD 7770.
  • Radeon HD 7770 is used in Desktops, and Radeon R9 M485X - in Laptops.
  • Radeon HD 7770 is build with GCN architecture, and Radeon R9 M485X - with GCN 3.
  • Core clock speed of Radeon HD 7770 is 277 MHz higher, than Radeon R9 M485X.
  • Radeon HD 7770 and Radeon R9 M485X are manufactured by 28 nm process technology.
  • Memory clock speed of Radeon R9 M485X is 500 MHz higher, than Radeon HD 7770.

Game benchmarks

high / 1080p 10−11 24−27
ultra / 1080p 6−7 14−16
QHD / 1440p 1−2 10−11
4K / 2160p 6−7
low / 720p 24−27 45−50
medium / 1080p 12−14 30−35
The average gaming FPS of Radeon R9 M485X in Assassin's Creed Odyssey is 136% more, than Radeon HD 7770.

Full Specs

  Radeon HD 7770 Radeon R9 M485X
Architecture GCN GCN 3
Code name Cape Verde Amethyst
Type Desktop Laptop
Release date 15 February 2012 14 May 2016
Pipelines 640 2048
Core clock speed 1000 MHz 723 MHz
Transistor count 5,000 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 92.54
Floating-point performance 2,961 gflops
Memory bus width 128 Bit 256 Bit
Memory clock speed 4500 MHz 5000 MHz
Memory bandwidth 160.0 GB/s
Shared memory - -
DirectX DirectX 11.1, Shader 5.1 12 (12_0)
Shader Model 6.3
OpenGL 4.6
OpenCL 2.0
Vulkan 1.2.131
Bitcoin / BTC (SHA256) 156 Mh/s
Laptop size large
Eyefinity +
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