apart from the tower, crucial factor for chosing an apropriate psu is the cpu-gpu that will be used. anyway an 650w haswell compatible like this is more than enough for running any high end gpu plus overclocking.for mid range gpu the 550w will suffice.
apart from the tower, crucial factor for chosing an apropriate psu is the cpu-gpu that will be used. anyway an 650w haswell compatible like this is more than enough for running any high end gpu plus overclocking.for mid range gpu the 550w will suffice.