What about one of these :
SeaSonic S12III 550W Bronze SSR-550GB3
DeepCool PSU 550W DN550 80+
Cougar VTE 500 500W 80 Plus Bronze
Fsp raider silver 80 + ppa 5502302
Im looking to upgrade an old pc and what gpu out of these three is better. The cpu is pentium dual core e6500 2.93ghz , but i will change it for a Q9550 later this year. Will a 500w psu work for the cards. Also the current gpu is hd 5770 512 mb and it died yesterday.