What should I upgrade next? BUDGET £280

adamlindley98

Honorable
Sep 24, 2012
42
0
10,530
My specs at the moment are:
Asus P8H77-M PRO
i3-2120
HD7870 Tahiti-LE
4gb RAM
500gb Seagate HDD
Corsair CX600M

I have £280 and i would like to upgrade my system but i'm not sure what is most important right now.