Everything ive read says that you can heat Ghee up to a higher temperature than cooking oil, yet, having just switched to it myself i notice it starts smoking long before it would if i was using oil, or maybe its higher temp than butter...
never mind im thick.
Bloody nice stuff either way. Im getting fat.

I think you'll find its smoke point is considerably lower than most other cooking oils

Useful list of the smoking points of a range of oils HERE

The smoke point of ghee depends on its purity.

Regards
CoR