GTX 1080 Ti Requirements?

[my2sons]

My son has an ALIENWARE AURORA Desktop with i5-6400 processor, 460 watt power supply, GTX 970 video card, he wants to upgrade to the GTX 1080 Ti card to run his HTC Vive VR-What will we need to upgrade to run the GTX 1080Ti?

 

[R4DIO4CT1VE]

should definitely get a new PSU