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DDR3
Posted: Fri Jan 11, 2008 12:31 am
by nguyen2011
Will DDR3 be function able in current T61s?
Posted: Fri Jan 11, 2008 1:58 am
by erik
no. DDR3 SODIMMs will use 1.5V input and the santa rosa architecture in the T61/p is 1.8V. besides, even if it was supported, santa rosa is limited to 667MHz and anything faster will be downclocked so it really wouldn't matter.
DDR3 support won't happen until the T62/p.
Posted: Fri Jan 11, 2008 3:56 pm
by brentpresley
Memory speed on Core 2 Duos doesn't help very much anyway.
Why you may ask? 2 reasons
1) C2Ds have REALLY LARGE caches (in comparison, historically) - this means that the more commonly used bits of data are right there on the CPU for immediate access, negating a great deal of the benefit of fast memory.
2) C2Ds have REALLY efficient prefecters (the logic units in a CPU that "guess" what data is going to be needed next and load it into cache before it is actually requested to be used by the CPU).
In-depth explanation here:
http://www.xbitlabs.com/articles/memory ... guide.html