I'm building 2 rigs i bought 6 rx 470's for my first rig should i buy r9 390's for my second rig ? Less used r9 390 second hands with warranty cost like 255-265 dollar in here(these cards used 2 month without oc) and rx 470's cost me 235 dollar. Any tips ?
Power usage is not the same. If you are not paying for power then 390 are the best. Else the RX470 is better. Which brand did you get? I read that msi and PowerColor is highest sols if you do the memory mod. Also you can run 6 RX470 from one 1200w psu. Saving you the cost of a second psu.