Running UE4 Open World Demo without Titan X?

I read that the open world demo ran at 30fps on the Titan X.

Since, it’s been announced that the demo will be made available for us to tinker with come around UE 4.8,
I’m wondering how well we would be able to run it on lower grade graphics cards, even a gtx980.

Does anyone know whether it would be nicely playable? I assume that the resolution which the 30fps demo was running at would be a good indicator, but I don’t know what that was.