bob70932 :
So what should i do, chop in my 980 and get a 1070 or sli my 980? playing at 1440p
cheers
As an owner of a 980 SLI setup playing at 1440p, I can safely say that I'll be waiting for a ti model or just whatever comes next, because any single card in the new generation so far hasn't been shown to beat the FPS that I'm getting at 1440. I'd lose money selling the 980's, and end up with less performance.
In your situation - it's a tough call honestly. If all you need is 60 fps, wait for the 1070's when they become more widely available in a couple of months. If you need 60+ at 1440p, like I do, then you might want to consider another 980 since it will be far cheaper and in most situations outperform a single 1080, albeit with all the caveats that come with using a multi GPU setup.
As a newcomer to SLI when I finalized my rig early this year I wasn't sure how I would like it, but it's been a great experience so far. I truly dont understand why so many people demonize it; it works in almost all the games I play regularly, and in the ones that don't it only takes 1 card to run it anyway. You will get a lot of opinions on using a multi GPU setup however (scroll back several pages in this thread to see a lengthy discussion about it).