WHAT Dual GPU's SHOULD I GET??

[Austin Porter]

So i am not looking to get a new gpu at all.. i only play games at 1080p ultra settings and i like older gpus... So i want to go with dual gpus and a i7 2700k.. i have 32gb 2133 ram and i render a lot of videos and i actually game and stream a lot as well.
So my question
what older graphics cards are gonna be the best to sli or crossfire for 1080p ultra for awhile.. I have a gtx 670 right now and dont wanna go any older.
the cards im really looking at is either

Dual 680's
Dual 670's
single 690
single 7990
Dual 7970's
Dual r9 290's
Dual r9 290x's
Dual Original Titans
Dual 780tis
Or i was maybe thinking about a r9 fury x
Please help me i really need it and i really am wondering what i should do..
Thank you!
if you have any other suggestions please let me know!!

 

[getochkn]

Why are obsessed with dual GPU's? not all games support it, or have issues with it, so then you end up with one GPU anyways.

 

[Barty1884]

As I'm sure you're expecting someone to tell you; Dual GPU options are generally a poor investment. A single, stronger GPU is always preferred.

What games do you play? Do they support CFx or SLI? Usually if they do, they prefer one or the other. I'd base your decision on that.

My suggested options:
R9 Fury X
Dual Titans
Dual 780TI's
Dual 290X's
Dual 670s

The first 4 are simply on a raw performance basis.... for the most part. Dual Titan's would likely outperform a single R9 FuryX in cases that support SLI..... but the Furyx would be the smartest option IMo.

Same with the dual 670's, they're not quite on the same class as the others...... but you already have one, making SLI cheaper.