anmc1989 :
is this a good setup for gaming? wanna run battlefield on at least mid, high settings. not gonna go for ultra, thats too expensive. what motherboard, power supply should i get? should i invest in a good sound card as well? please advice on amd only thanks.
That's a decent setup, it should do what you want...
However, having said that. Which HD 7850 are you looking at? If you're looking at a HD 7850 in the $160-180 range (a high end model), then you might consider something like a HD 7870 GHz or HD 7870XT if you can find one. The R9-270X will be comparable to those and come in about $199. Though, if you can afford $199, I would also look pretty hard at the HD 7950s, as there were several that crept under $200 a few weeks ago. Cyber Monday deals might have a situation where you can get a good HD 7950 for $180.
As for other components...a few good MBs:
Asus M5A97 R2.0 (not LE version)
Asus M5A99X EVO R2.0
Gigabyte 970A-UD3 (revision 4.0)
Gigabyte 990FXA-UD3
Asrock 970 Extreme4
Asrock 990FX Extreme4
Good PSUs:
Cooler Master Silent Pro M2 620W
Corsair CX500M or CX600M
Seasonic 550W
PC Power & Cooling Silencer Mk III 500W/600W
OCZ Fatal1ty 550W
Good RAM:
G.Skill DDR3-1600 or DDR3-1866 (Ares, Sniper, Ripjaws)
Corsair DDR3-1600 or DDR3-1866 (Vengeance, Dominator)
Kingston DDR3-1600 or DDR3-1866 (HyperX is good)
Patriot DDR3-1600 or DDR3-1866 (Viper3 preferably)
Good GPU makers:
Sapphire
Asus
HIS
MSI
XFX
PowerColor
Gigabyte
(For a GPU I would recommend each manufacturer in that order listed)