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The Tualatin was a stopgap in Intel's midrange product line. This rather unusual processor appeared after the release of the Pentium 4 flagship product series. The Tualatin built on the Coppermine design by introducing a streamlined .13-micron core architecture and adding a hardware data prefetch mechanism to maximize efficient instructions per clock. Intel also chose to adapt its socket interface with the Tualatin by introducing a new socket standard called FCPGA2, which is incompatible with the huge number of traditional Socket 370 FCPGA motherboards still in use around the world. While the different socket standards may start to get a bit confusing, you should simply keep in mind which socket type you have on your motherboard and which processors work with that particular socket type, rather than trying to understand why Intel chose to complicate our lives with so many socket standards.
The latest 1.2+-GHz Celeron features a core-die reduction to .13 micron, plus a migration to Intel's new FCPGA2 socket format. Its base design closely resembles the Tualatin, though the feature set has been scaled back to a 128-KB Level 2 cache, 100-MHz front-side bus support, and no advanced hardware data prefetch mechanism. This new breed of Celeron T series chips offers overclocking results similar to the Tualatin chips. Most will reach 1400+ MHz with good cooling and a minor bump in core voltage.
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