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The fastest Pentium MMX on socket 7 and the second fastest Pentium MMX in the world. The Pentium MMX originally went up to 233MHz but mobile versions were also available in 266MHz and 300MHz versions. The 266MHz version was also made for socket 7 so it can run in very few desktop systems.

Intel used their 250nm manufacturing process to create the 266MHz 'Tillamook'. The original Pentium MMX is made on the 350nm process and thus this 'Tillamook' version can overclock a lot better. It's not difficult to get it up to 350MHz or higher . The only problem I encountered is compatibility. It does work on several of my motherboards but in all of them the system crashes after the P.O.S.T. Some motherboards do show the table with system information but don't show L2 cache. I suspect the motherboards can't handle the CPU properly and somehow mess up the L2 cache.

Because my motherboards don't run the 'Tillamook' correctly I don't have benchmarks.

I did not include a picture of the front of the CPU because it is exactly the same as the previous PPGA Pentium MMX CPU's. It looks just like the one shown here . > Read more