DDR3

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nguyen2011 · #1 Post by **nguyen2011** » Fri Jan 11, 2008 12:31 am

Will DDR3 be function able in current T61s?

#2 Post by **erik** » Fri Jan 11, 2008 1:58 am

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.

brentpresley · #3 Post by **brentpresley** » Fri Jan 11, 2008 3:56 pm

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

DDR3

DDR3

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