Can this run a single 6850 or 6870? and if i want to Xfire a 5770 will i need a new PSU? I was searching through google and found a few links that says its possible to run a 6870 on a good 500w PSU and i have even seen some people say its possible to run 2 5770 on a 500w PSU.
1: Should i buy another 5770 and xfire if my PSU can handle it? and then maybe buy a new PSU down the road?
2: Should i buy a 6850 or 6870 instead and keep my current PSU?
3: Should i just buy a new PSU for now and save up later for a better GPU?
Rest of system spec (to know power draw)
Athlon x4 620 at 3.25Ghz
4 Gig ddr3 kingston value ram
1 HDD and 3 fans in case.
Im open for a Nvidia card as well but they usually draw even more power. so if you can recommend something from them that will be a good upgrade go ahead, i would say my budget but its Rands (R) not dollars ($) so kinda pointless.
Your Psu will be good for a single 6870, buy one now and get a new psu later. 577 corssfire are slightly better then a 6870 in some games but also vice versa, and you can overclock the 6870 past the 5770's. Plus later on you can get another 6870 if you need more power. Two 6870's are better then a 580gtx!