Some sources say that Intel is likely to give the i925X (Alderwood) chipset some additional performance. The Alderwood chipset is expected to have a 800MHz FSB bus for LGA775 CPUs, dual channel DDR2 memory up to 533MHz, PCI Express x16, multiple Serial ATA 150 ports with RAID support and software WLAN access point. Acording to VR-Zone it might even support DDR2 667MHz.
Other unofficial sources tell that Intel was considering to add support for Pentium 4 Prescott CPUs with 1066MHz FSB bus.
Higher frequency of PSB as well as higher bandwidth or RAM typically give some additional performance boost for new platforms. 1066MHz Quad Pumped Bus will take full advantage of phenomenal 8.5GB/s bandwidth provided by dual-channel DDR2 SDRAM memory, giving end-users new height in performance computing.
Right now the Santa Clara, California-based company supplies Intel Pentium 4 Extreme Edition processors with 2MB L2 cache for gamers and performance enthusiasts. The Extreme Edition chips are substantially more powerful than typical Pentium 4 CPUs. The company said it would supply Extreme Edition processors for future systems that use Socket T. Current Pentium 4 Extreme Edition chips use Socket 478 and 800MHz Quad Pumped Bus. It is not clear how performance of Pentium 4 “Prescott” processors with 1066MHz PSB will compare to that of Pentium 4 Extreme Edition chips with 800MHz PSB.
VR-Zone reported that Alderwood has some overclocking limitations. The clock speed will be locked down when it exceeds 12% increase over its default speed, and the method is by tracking down the source clock. They also say that motherboard makers are looking for solutions to overcome this limitation. This claim contradicts with past reports about increasing maximal processor system bus speed on i925X.
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