2002whitegt
Member
I would sell and get a Titan X. That way you have better single card performance when SLI doesn't work, is buggy, or doesn't scale well.
At first glance I was sure getting a second 980 was the way to go, but after seeing the overclock at 4k (which I'm planning to get a 4k gsync monitor) at a couple of sites
http://www.anandtech.com/show/9059/the-nvidia-geforce-gtx-titan-x-review/17
I'm leaning towards selling the 980 to my brother and getting the Titan X, it's crazy how it keeps up with a 980 sli. Titan X sli though would be a dream.