660ti SLI with 700W PSU

TechFreak004

Honorable
Nov 16, 2013
3
0
10,510
Hey guys,

I thought I'll upgrade my computer with another 660ti (can't wait for Star Citizen hehe). The PSU wattage calculators on the Internet say that I need 600~660W of power. My question is, is 40W extra safe for a computer build? Here are my specs if anyone needs it:

i7-2600k
Z68X-UD3H-B3
Gigabyte 660ti OC
4x4 Corsair Vengeance 1600Mhz
2xSSDs, 1 Hard drive
1 Fan 5.25inch Fan controller, 5 Fans

The PSU I have is this one

Thanks :D