2013 mba dual thunderbolt

[blurobot]

From what I know:

-2011 mba w/ 1 tb screen and heavy multitaking = slight lag
-2012 mba w/ 1 tb screen and heavy multitaking = run perfectly and can sorta do 2 tb display with lag

So what about the 2013? Can it run 2x tb screen in clamsheel mode without lag?

Anyone tried this yet? I know apple state it support 1 tb screen only but i know the 2012 sorta could drive 2. A 11" souper up mba w/ 2 tb screen would be awesome

 

[blurobot]

No one? Dropped by the apple store today and the guy did tell me it would work fine. He did have to look at the specs page to tell me it was a hd5000 tho so i'm not going to trust him