So basically after reading the answers posted on my previous thread I realised that the radeon 6990hd is not compatible with my 500 watts psu . So I did some research on gaming cards that are compatible with my psu and I 'm really interested in the GTX 660 and I'm wondering if its truly compatible and that I can use it without problems and I would like to know if this card can game on at least medium graphics and If it will still be good in the years to come