Core Duo 2 is Core2Duo meaning a dual-core processor with shared L2 Cache unlike CoreDuo processors which do have 2 processing core but the L2 Cache of each core is not shared with the L2 Cache of other core.
Centrino is a platform-marketing initiative from Intel. It is not a mobile CPU - rather, the term covers a particular combination of mainboard chipset, mobile CPU and wireless network interface in the design of a laptop. Systems equipped with these technologies should deliver better performance, longer battery life and broad wireless network interoperability.
One of the significant difference between Centrino and Centrino 2 technology is that Centrino supports Mobile Intel® GS45 Express Chipset Family with Intel® Graphics while Centrino 2 supports Mobile Intel® GM45 Express Chipset Family with Intel® Graphics. Furthermore, recommended technology for Centrino 2 is Intel® Turbo Memory. Centrino does support 802.11a/b/g and n and so does Centrino 2 however in Centrino 2, you have the option of upgrading it with WiMAX built into your laptop powered by Intel® Centrino® 2 processor technology. Adding the optional WiMAX technology will position you at the cutting edge of 4G wireless.
For more clarity on Centrino and Centrino 2 technology, you must read the following:
I hope this clarifies it however in case you need further clarification or have any queries, feel free to contact us.
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