Hello, i want to upgrade my 6770 to a 7870 and would like to know what is necessary to upgrade, i'm on a budget of around $400
I currently run the following
-8gb of ddr3 1600(unfortunately limited to 1333 as i'm a derp)
-And an Cooler Master Elite 342 which came with the thermal master 420w Psu
Yes it was the point of the z68/z77 to overclock the i5-2500k, then you don't need to change the mobo, just the psu and gpu.
And one more thing that makes me not recommend a new mobo, is the arrival of the new lga 1150 and the new intel cpus(haswell) for 2013.