GeForce GTX 580M vs Radeon HD 6850

When choosing between GeForce GTX 580M and Radeon HD 6850, it is worth examining the specifications of the models in detail. Do they meet the recommended requirements of modern games and software? Storage capacity, form factor, TDP, available ports, warranty and manufacturer support are all important. For example, the size of a PC case can limit the maximum thickness and length of the card. Often, instead of the factory overclocked card and RGB backlight, it is better to choose a reference model with a more efficient GPU. And make sure that your current power supply unit has the correct connection pins (using adapters is not recommended). This GPUs compare tool is meant to help you to choose the best graphics card for your build. Let's find out the difference between GeForce GTX 580M and Radeon HD 6850.

GeForce GTX 580M is a Laptop Graphics Card

Note: GeForce GTX 580M 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 GeForce GTX 580M here:

Main Specs

  GeForce GTX 580M Radeon HD 6850
Power consumption (TDP) 100 Watt 127 Watt
Interface MXM-B (3.0) PCIe 2.0 x16
Supplementary power connectors None 1x 6-pin
Memory type GDDR5 GDDR5
Maximum RAM amount 2 MB 1 GB
Display Connectors No outputs 2x DVI, 1x HDMI, 2x mini-DisplayPort
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  • Radeon HD 6850 has 27% more power consumption, than GeForce GTX 580M.
  • GeForce GTX 580M is connected by MXM-B (3.0), and Radeon HD 6850 uses PCIe 2.0 x16 interface.
  • GeForce GTX 580M has 1 GB more memory, than Radeon HD 6850.
  • GeForce GTX 580M is used in Laptops, and Radeon HD 6850 - in Desktops.
  • GeForce GTX 580M is build with Fermi architecture, and Radeon HD 6850 - with TeraScale 2.
  • GeForce GTX 580M and Radeon HD 6850 are manufactured by 40 nm process technology.

Game benchmarks

high / 1080p 10−12 9−10
ultra / 1080p 6−7 5−6
QHD / 1440p 1−2 0−1
low / 720p 24−27 21−24
medium / 1080p 14−16 12−14
The average gaming FPS of GeForce GTX 580M in Assassin's Creed Odyssey is 16% more, than Radeon HD 6850.

Full Specs

  GeForce GTX 580M Radeon HD 6850
Architecture Fermi TeraScale 2
Code name N12E-GTX2 Barts
Type Laptop Desktop
Release date 28 June 2011 21 October 2010
Pipelines 384 960
Core clock speed 620 MHz
Transistor count 1,950 million 1,700 million
Manufacturing process technology 40 nm 40 nm
Texture fill rate 39.7 billion/sec 37.20
Floating-point performance 952.3 gflops 1,488.0 gflops
Length 198 mm
Memory bus width 256 Bit 256 Bit
Memory clock speed 1500 MHz
Memory bandwidth 96.0 GB/s 128.0 GB/s
Shared memory -
DirectX 12 API
Shader Model 5.1 5.0
OpenGL 4.5 4.4
OpenCL 1.1 1.2
Vulkan N/A
CUDA +
CUDA cores 384
Bus support PCI-E 2.0 AGP
SLI options +
3D Blu-Ray +
3D Gaming +
Bitcoin / BTC (SHA256) 40 Mh/s 139 Mh/s
Laptop size large
Optimus +
Eyefinity +
Design reference
CrossFire +
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