Also, very exciting that they're supporting GPU cloud rendering - that's going to be big for 3D.
My experience is that graphics card stats are a decidedly slippery fish as far as comparison goes.
However, a quick bit of Googling implies that this is almost identical, at least on paper, to a GeForce 770 or 680.
http://www.geforce.co.uk/whats-new/articles/introducing-the-...
Unfortunately, without knowing more details (clock speed, memory bandwidth) it's hard to say more.
Guess someone (possibly me) needs to benchmark 'em. :)
UPDATE - excellent info further down this thread: https://news.ycombinator.com/item?id=6678744