Question regarding upgrade of GFX to a new.

[battle]

Heya, i am considering to upgrade to a new graphics cards, possible a GTX 460 but i don't know if my power supply is sufficent together with my other stuff attached to the computer as follows :

Western Digital 1000 GB Green 32 MB : Harrdrive

Intel Core i7 920 : CPU

GIGABYTE GA-EX58-UD3R : Motherboard

Corsair 6GB DDR3 1333MHz (3x2) XMS3 : RAM

Scythe Mugen 2 CPU Cooler : CPU cooler

Corsair CMPSU-520HXEU 520Watt : Current powersupply

XFX GeForce GX-285N-ZDFF, GDDR3, PCI-E : Current Graphics card.
 
thats my current setup without counting in my current GFX card as below is the card i am considering upgrading to, it's poweussage is 450 wats.

GIGABYTE GeForce GTX 460 1GB : possible new GFX card

[Bilbo]

520W PSU is more than plenty for a GTX460

[battle]

520W PSU is more than plenty for a GTX460

Change in plans, ordered GTX 560 instead. only a few more bucks than the 460

[Julio.]

Wattage is not so important, look at the Ampage on the +12V for the Power supply, should be on a sticker on the side.

As long as that exceeds what your card requires, you should have no problem.