Originally Posted by ktf
System Type:1 physical CPU
Motherboard:Regular - Desktop
CPU:Intel Core i5-2500K 3300 MHz Sandy Bridge
Overclocked:4500 MHz, 1.3 V
CPU Utilization (TDP):90% TDP
RAM:2 Sticks DDR3 SDRAM
Video Card:NVIDIA GeForce GTX 570
Video Type:Single Card
ATTENTION: FOR PERSONAL, NON-COMMERCIAL USE ONLY
IDE HDD 5400 rpm:5 HDDs
IDE HDD 7200 rpm:2 HDDs
DVD-RW/DVD+RW Drive:1 Drive
Sound Blaster w/ Front Bay:Yes
Additional PCI Card (avg):2 Cards
Regular:4 Fans 120mm; 3 Fans 140mm;
Keyboard and mouse:Yes
System Load:90 %
Minimum PSU Wattage:585 Watts
Recommended Wattage:635 Watts
Please note that those numbers are relative and do not include GPU OC. I have a 750 W Corsair and I doubt it would handle perfectly another 570 with full OC on both cards and CPU. And efficiency is at its best at around 50 % of PSU power, so I don't see why we should not recommend 650 W for gaming rigs.
A 650 W PSU holding SLI of 570 ? Are you sure ?
Single GTX570 system, would draw around 470w. A 650w is more than enough.
These PSU calculators are pretty bad, and overrated, also if its from a PSU manufacturer, they are going to make money by convincing you to buy a bigger PSU.
A quality PSU will put out its rated wattage and more, so why waste the extra money?
I had a Corsair CX430 V1 running SLI 8800GT's