Originally Posted by Ryanmc
Wow 4x 6+2 PCI-E Cables. That is a lot, but even within maybe 1-2 years from now i would possibly do triple (as the ASUS MOBO thankfully supports that). So that would be a nice PSU at a low cost!
Maybe I'm forgetting, but I thought that two 660 Ti's or two 670s would need at least 4 x 6-pin PCI-E cables (2 each). Either way, adding a 3rd 670 would still be fine with this PSU:
With three GTX 670s under full load in their system, their power supply pulled 583W from the wall outlet. Their CPU was idling during this test, so I have to add 150W for an overclocked 3570K under full load which makes the PSU pulling 733W from the wall outlet. So, if the PSU is 85% efficient while pulling 733W from the wall outlet, then that would mean the system is pulling about 625W from the PSU.
The 650W Rosewill CAPSTONE Series is like all good, recommendable PSUs: it's able to deliver its rated wattage continuously, "24/7" if it's ever needed. ;) To take it further, I was calculating an absolute maximum full load between the CPU and the 670s.