Best power supply for i7 system

sharkbyte5150

Honorable
Mar 22, 2012
901
0
11,060
Hello,
I'm building a system using the i7-2700K on the Asus P8Z68-V/Gen3 motherboard with onboard video, 4 sticks DDR3/1333 RAM, 1 Intel Cherryville SSD, 1 1TB internal SATA HD, 1 Blu-Ray/DVD/CD-RW SATA drive, a few USB devices connected.

Some power supply calculator says I need less than 400W but that can't be right? Any suggestions?