Originally Posted by vikingsteve
Originally Posted by dph314
Wondering if I should upgrade. I can probably sell my 680s for close, if not at, retail since supplies are still pretty limited. Could get a 690 and a second down the road. Does anyone with 590s out there regret going to a dual-gpu card/cards? I never owned one before. I know the 590 didn't overclock well, 690 may not either. I got pretty decent 680s, so, maybe skip this and just wait till the 780?
2 680s will outperform a 690, that much I'm certain of. 2 cards always outperform the dual-GPU cards when you're using the highest-end available
Historically this has always been true of any dual GPU vs two single.
However this is also unlike no other GPU's before it. The tech, power consumption, & heat is not the same as before historically either. We may see the 690 perform on a very similar or closer to level than ever before.
Even if it doesn't - the performance from a dual GPU, usually at the price of 1 1/2 single GPU's (estimating), is worth the performance in a single PCIe slot.
I think we've yet to determine what it will yield and can't really determine outcome until it's tested, other than guess theoretically.