What is the "Falcon" chip?

I've been looking on Craigslist to buy a Xbox 360, and some of them say it comes with the new "Falcon" chip to reduce heat, run smoother, and get rid of false hardware issues. Whenever I see that it has the chip I usually ignore that posting because I assume it could actually could cause problems later. So what exactly is this chip? Is it legit? :P

trying to stop RROD. but the console its just faulty

[QUOTE="tuvideo87"]

trying to stop RROD. but the console its just faulty

Well im on my 2nd Falcon chipped 360-the 1st still running fine after 1 year -just traded up for an Elite.

But with my original launch 360 back in 2006 you could've fried kippers on casing-where it used to run so hot,needless to say it got rrod after only 10 months.