GeForce GTX 580 vs Radeon HD 6990M

When choosing between GeForce GTX 580 and Radeon HD 6990M, 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 580 and Radeon HD 6990M.

Radeon HD 6990M is a Laptop Graphics Card

Note: Radeon HD 6990M 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 HD 6990M here:

Main Specs

  GeForce GTX 580 Radeon HD 6990M
Power consumption (TDP) 244 Watt 100 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 2 GB
Display Connectors 2x DVI, 1x mini-HDMI No outputs
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  • GeForce GTX 580 has 144% more power consumption, than Radeon HD 6990M.
  • GeForce GTX 580 is connected by PCIe 2.0 x16, and Radeon HD 6990M uses MXM-B (3.0) interface.
  • GeForce GTX 580 has 1534 GB more memory, than Radeon HD 6990M.
  • GeForce GTX 580 is used in Desktops, and Radeon HD 6990M - in Laptops.
  • GeForce GTX 580 is build with Fermi architecture, and Radeon HD 6990M - with Terascale 2.
  • Core clock speed of GeForce GTX 580 is 829 MHz higher, than Radeon HD 6990M.
  • GeForce GTX 580 and Radeon HD 6990M are manufactured by 40 nm process technology.
  • Memory clock speed of GeForce GTX 580 is 1104 MHz higher, than Radeon HD 6990M.

Game benchmarks

high / 1080p 21−24 14−16
ultra / 1080p 14−16 8−9
QHD / 1440p 8−9 3−4
4K / 2160p 6−7
low / 720p 40−45 30−33
medium / 1080p 27−30 16−18
The average gaming FPS of GeForce GTX 580 in Assassin's Creed Odyssey is 53% more, than Radeon HD 6990M.

Full Specs

  GeForce GTX 580 Radeon HD 6990M
Architecture Fermi Terascale 2
Code name GF110 Blackcomb XTX
Type Desktop Laptop
Release date 9 November 2010 12 July 2011
Pipelines 512 1120
Core clock speed 1544 MHz 715 MHz
Transistor count 3,000 million 1,700 million
Manufacturing process technology 40 nm 40 nm
Texture fill rate 49.4 billion/sec 40.04
Floating-point performance 1,581.1 gflops 1,601.6 gflops
Length 10.5" (267 mm) (26.7 cm)
Memory bus width 384 Bit 256 Bit
Memory clock speed 2004 MHz (4008 data rate) 900 MHz
Memory bandwidth 192.4 GB/s 115.2 GB/s
Shared memory -
DirectX 12 (11_0) 11.2 (11_0)
Shader Model 5.1 5.0
OpenGL 4.2 4.4
OpenCL 1.1 1.2
Vulkan N/A N/A
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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