Bought one a while back myself. At idle the system draws 280w ono, gaming 630w ono, prime95, 470w, furmark, 740w. Furmark and prime95 together was 860w, psu is a corsair hx850w, spec in sig. Gpu's clocked at 750/1500/1674 on stock volts of 0.987, cpu @4.2ghz, 1.312500 vcore.