But after three years you decide you want a new car. If you trade in the Altima, you will likely get about 46% of the sticker price, or $10,621 (the resale value after three years, according to the Kelley Blue Book). Then you'll have to pay off the loan. Figure your total out-of-pocket cost will be $9,525.
The Y-series CPUs have a six watt SDP, down from seven watts in Ivy Bridge and they also have a 9.5 watt cTDP between the max TDP value and the SDP value. U-series CPUs also have a cTDP of 11.5 watts, but don't have a validated SDP value.
Technically, the Xeon and Core parts should be interchangeable. C206 supports the non-Xeon processors, and there's no reason for Z68 not to support the Xeons. The sockets are identical, the processors are as closely related as possible without being the same. There just aren't any guarantees.