i only use nvidia and so i know nothing about amd but i have a monitor that does 1440p with my hdmi and never have had a problem but i got a graphics card for my brother and am testing it and i cant get it to go past 1080p. its a radeon 6950. the specs says it can go to 2560x1600. is there something im missing???? please help. not a lot of info on the web about this.