What are the top of the line graphics cards?

I creating a computer for at first chance and I would like a place to begin.So where am i allowed to find the best graphics unit card so We can get an idea for what I need to buy

Radeon HD series.In my opinion, easily among the finest lines with graphic cards out there.I employ a Radeon HIGH-DEFINITION 5800 and may run just about any Crysis game on optimum everything.However yeah, a Radeon HIGH DEFINITION that’s in all probability 5600+ would have been a good video card.