GeForce GTX 580 vs Radeon R9 M485X

In this comparison between GeForce GTX 580 and Radeon R9 M485X 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 GeForce GTX 580 will be the best choice, for others Radeon R9 M485X will be their preference. Study the comparison tables below and make your choice.

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

  GeForce GTX 580 Radeon R9 M485X
Power consumption (TDP) 244 Watt 250 Watt
Interface PCIe 2.0 x16 MXM-B (3.0)
Supplementary power connectors One 6-pin and One 8-pin None
Memory type GDDR5 GDDR5
Maximum RAM amount 1536 MB 8 GB MB
Display Connectors 2x DVI, 1x mini-HDMI No outputs
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  • Radeon R9 M485X has 2% more power consumption, than GeForce GTX 580.
  • GeForce GTX 580 is connected by PCIe 2.0 x16, and Radeon R9 M485X uses MXM-B (3.0) interface.
  • GeForce GTX 580 has 1528 GB more memory, than Radeon R9 M485X.
  • GeForce GTX 580 is used in Desktops, and Radeon R9 M485X - in Laptops.
  • GeForce GTX 580 is build with Fermi architecture, and Radeon R9 M485X - with GCN 3.
  • Core clock speed of GeForce GTX 580 is 821 MHz higher, than Radeon R9 M485X.
  • GeForce GTX 580 is manufactured by 40 nm process technology, and Radeon R9 M485X - by 28 nm process technology.
  • Memory clock speed of Radeon R9 M485X is 2996 MHz higher, than GeForce GTX 580.

Game benchmarks

high / 1080p 21−24 24−27
ultra / 1080p 14−16 14−16
QHD / 1440p 8−9 10−11
4K / 2160p 6−7 6−7
low / 720p 40−45 45−50
medium / 1080p 27−30 30−35
The average gaming FPS of Radeon R9 M485X in Assassin's Creed Odyssey is 10% more, than GeForce GTX 580.

Full Specs

  GeForce GTX 580 Radeon R9 M485X
Architecture Fermi GCN 3
Code name GF110 Amethyst
Type Desktop Laptop
Release date 9 November 2010 14 May 2016
Pipelines 512 2048
Core clock speed 1544 MHz 723 MHz
Transistor count 3,000 million 5,000 million
Manufacturing process technology 40 nm 28 nm
Texture fill rate 49.4 billion/sec 92.54
Floating-point performance 1,581.1 gflops 2,961 gflops
Length 10.5" (267 mm) (26.7 cm)
Memory bus width 384 Bit 256 Bit
Memory clock speed 2004 MHz (4008 data rate) 5000 MHz
Memory bandwidth 192.4 GB/s 160.0 GB/s
Shared memory -
DirectX 12 (11_0) 12 (12_0)
Shader Model 5.1 6.3
OpenGL 4.2 4.6
OpenCL 1.1 2.0
Vulkan N/A 1.2.131
CUDA +
CUDA cores 512
Bus support PCI-E 2.0 x 16
Height 4.376" (111 mm) (11.1 cm)
SLI options +
Multi monitor support +
HDMI +
Maximum VGA resolution 2048x1536
Audio input for HDMI Internal
Bitcoin / BTC (SHA256) 142 Mh/s
Laptop size large
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