I'm doing a new build but I'm stuck on the gpu. I can afford to crossfire 2 5770's or get one 5850. I can always buy another 5850 later on down the road to crossfire that as well. What would be the better option here?
the phenom quad? as long as that ram isnt like bottom barrell 1066 and you have it on a decent motherboard, would definitely get the 5850. the 5770 is like what id put into an old timers box to make them think they are cutting edge.
i have an i5 750 with 5770, its a good card, i run CODMW2, UT3, left 4 dead and gta4 at highest settings on 1680x1050 with no lag, so if you already have a 5770 then go with another one and do a crossfire, if you dont and wanna get one then i suggest getting nvidia gtx 460 as they are very powerful cards and scale up to 98% when doing sli.
Like all of the opinions I'd go with the 5850. Remember though all the prices are dropping. The 5850 you really want to look at are the reference designs or the Asus DirectCU or Mayyybeee the MSI twin frozr.
The reason for those specific 5850s is because the Asus DirectCu 5850 and reference design 5850's have unlocked voltages. The reason unlocked voltage tweaking is so useful is most people who have a 5850 that can tweak the voltages can OC the 5850 to 1000 core clock which at that point it scores 18125 on 3DMark Vantage (I know this because I've tested it). The reason I wouldn't choose the Twin Frozr is because although it is somewhat cheap, it actually runs hotter than the reference design.
There is the version without the "Top" which is a lot cheaper, the only difference is the TOP is factory OC'd a bit, but still either the model with TOP or not the DirectCU is a best as it is very cool.
2 5770s are enough to run any game pretty well in hd(probably not for long though whith crysis 2 coming soon) but are about the same as one 5850, so 2 5850s would be alot beter than 2 5770s and more future proof but use more power. Totaly cool to go with 2 5770s if you just want to settle for "enough"