Graphics Cards

[duceduc]

I am looking to upgrade my monitors to a 3 monitors setup. Before, I purchase the monitors, I would like to know if my graphic card will support it. 
AMD Radeon HD 6800 Series
DVI Ports: 2

HDMI: 1

DP: 1

[elstaci]

Download and run the free program GPU-Z and see what EXACT HD 68xx Make & Model you have.

For instance as an example only: XFX RADEON HD 6850 graphics card - Radeon HD 6850 - 1 GB Series Specs & Prices - CNET 

The XFX Radeon HD 6850 can support up to 4 Monitors.