QUOTE(alexsupreme @ Oct 24 2012, 02:49 PM)
Externally.
An eGPU solution.No cooling problems and very upgradeable.

But then it will not become portable anymore... How do you supposed to put all the stuff including the bulky PSU for the eGPU into your laptop backpack?
In the end, desktop is the choice if portability is not the main concern.

Added on October 25, 2012, 5:49 pmI found this info from a chinese forum.
Link
Y500/Y400 will be priced higher than Y580/Y480 except for the low end versions. (Lenovo is still trying to reduce the cost though.)
Additionally, Y400 only has 1366x768 screen res, which is not good. (The screen should be at least 1600x900)
I hope for the best.

Added on October 25, 2012, 6:04 pmIn case anyone haven't seen this video yet, I raise you the
Unboxing of Lenovo Ideapad Y400.This post has been edited by CidBunansa: Oct 25 2012, 06:04 PM