Difference between two models

[uplusd]

Hi guys,

I'm trying to figure out the difference between these two models:

MB158LL/B (http://www.amazon.com/Apple-MacBook-MB158LL-Laptop-Processor/dp/B001699NMA/ref=sr_1_9?ie=UTF8&s=pc&qid=1207761507&sr=1-9)

MB063LL/B (http://www.amazon.com/Apple-MacBook-MB063LL-Laptop-Processor/dp/B000GA7048/ref=sr_1_14?ie=UTF8&s=pc&qid=1207761507&sr=1-14)

The only difference I see is the 063LL has 1GB less RAM, but costs more... What gives?

[aristobrat]

Apple's got a fairly cool tool that lets you look up the products by their model or serial numbers.
http://support.apple.com/specs/

The (MB063LL/B) is the generation before the current one (Late 2007).

I don't see the other model number listed, so I'm wondering if it's some Config To Order.

The specs, other than the memory, do look the same, but I'm wondering if they're both Santa Rosa chipsets or not.