Crossfire 7870

will my 750 watt cosair power two 7870 and fx 4170 or should i upgrade my psu 

I never reccomend taking to meh cards and putting them together not that the 7870 is meh but it does not make sense to me. 
wait for a newer amd/nvidia card and then sell your 7870 and buy a new one.


Hope it helped!