450w SFX Enough?

[sthapns247]

I'm looking to put my current mini-ITX rig into a smaller case that requires an SFX PSU. Silverstone seems to be the only reputable manufacturer making these and their options are limited. I'm looking at a 450 watt 80 plus gold and just want some opinions if it will provide enough power.

Operating System
Windows 8.1 Pro 64-bit
CPU
Intel Core i5 3570K @ 3.40GHz
Ivy Bridge 22nm Technology
RAM
16.00GB Dual-Channel DDR3 @ 668MHz
Motherboard
ASUSTeK COMPUTER INC. P8Z77-I DELUXE (LGA1155)
Graphics
3071MB NVIDIA GeForce GTX 780 (EVGA)
Storage
232GB Samsung SSD 840 EVO 250GB (SSD)
59GB SAMSUNG SSD 830 Series (SSD)

This is the case I am looking at: http://www.newegg.com/Product/Product.aspx?Item=N82E16811163256

 

[Dark Lord of Tech]

Not enough power with that 780 in the build.

http://www.tomshardware.com/reviews/silverstone-sx600-g-sfx-power-supply,4041.html

This is what you would need.

A GeForce GTX 780 - 42 AMPS on the 12v + rail and a 600 watt power supply with 2 - 6+2 PCIE power connections.