Is 650watts enough?

G

Guest

Guest
i5 2500k 4.6ghz
h100i
sapphire 6870
60gb corsair ssd
120gb corsair ssd
500gb HDD
Corsair 650tx PSU

My question is that recently my 6870 has been lacking.... So i thought i would revitalise my build with a stronger graphics card and have been looking at the ASUS HD 7970 Direct CU II, however will my PSU be able to handle this? with my current set up of course.

Thanks