The evga 1000gq comes with 4 8+8 pin cables and I'm currently running 4 1080tis. You can't use connectors from different psu as the pin layout is different for each manufacturer.
Hahh! Finally a picture I can actually really see 8+8 cables!
It seems the EVGA SuperNOVA models doesn't have 8+8 cables but other models do.
Weird, really.
I'm curious if the cables for the 1000GQ are interchangeable with the SuperNOVA models. It would be silly if it wouldn't but who knows, time to ask EVGA again.