they released new 360s, that come with a new cpu, codenamed the falcon chip. it runs cooler and uses less power. Its alos on a smaller die, I believe its the 65nm, rather then the 90nm they were using before.. I believe the powersupply for these models is also 175Watts rather then the 205 watts that came with the older ones.
above that the new 360s come with an HDMI output.
These systems started being made in August 17, 2007 and later.
A few of the benefits to these systems is that: they no longer overheat, use less power, and have an HDMI output.
other then that identical.
Other then that youve got a good sale here, especially considering the 4x controllers, and the good games.