Will my psu can power hd 7870?

abuzz

Honorable
Jan 2, 2013
654
0
11,010
hello guyz iam about to buy a new gpu that is xfx7870hd buy iam tensed that will my psu can power it or not, iam using cooler master thunder 500w and its having 1x6pin where as i heard 7870 requires 2x6pin pcie connectors please tell me is it safe to use molex or i should buy a new psu or i should go with gtx 660?

my playing resolution will be 1440x900 .