Would this psu be good for a single MSI GTX 780 gpu.
http://www.ebay.co.uk/itm/Antec-TruePower-Classic-TP-650C-650W-Power-Supply-80-Plus-Gold-/181749930607?hash=item2a5123da6f:g:vgkAAOSwstxVWwr2
It has 30A on each of its two 12V rails. Do I need a single 12V psu?
http://www.ebay.co.uk/itm/Antec-TruePower-Classic-TP-650C-650W-Power-Supply-80-Plus-Gold-/181749930607?hash=item2a5123da6f:g:vgkAAOSwstxVWwr2
It has 30A on each of its two 12V rails. Do I need a single 12V psu?