P4的效能真的差嗎?從P3開始浮點運算的功能和AMD就已經有線路設計上的差異,微軟一直到WINDOWS XP 64BIT才開始針對PIII 733MHz以上的浮點運算器作最佳化的動作,可惜的是,WINDOWS XP 64BIT版本最低硬體配備需求光是主板,CPU和記憶體至少要價十萬元以上,再加上其他PCI&AGP支援64BIT的週邊還有使用的軟體,真的組好可以運作至少將近二十萬,並非一般人可以負擔,WIN XP 64BIT的運作核心十分精良,程式的運算速度完全取決於記憶體的大小,最低需求是1G,已經是跑得十分勉強!

下面是小弟翻譯WINDOWS XP 64BIT使用手冊其中一段話-
Windows XP 64-Bit Edition will run on the Intel Itanium processor as the platform for workstation users who are reaching the memory limits of 32-bit systems.
Windows XP 64-Bit 版本適用於記憶體運算頻寬需求超過32-bit的Intel硬體作業平台的使用者.

The key difference between 32-bit and 64-bit Windows XP-based computing lies in the 64-bit versions ability to use much more system memory.
Windows XP 32-bit與64-bit作業系統之間主要的差異在於64-bit系統需要更大量的系統記憶體來執行功能.

Windows XP 64-Bit Edition will initially support up to 16 gigabytes of RAM and up to eight terabytes of virtual memory.
Windows XP 64-Bit 版本所支援的實體記憶體容量從160億bytes開始,最大到8兆bytes.

Physical memory support will grow in the future as hardware capabilities expand.
支援實體記憶體的容量可以隨著往後硬體設備的擴充而再增加.

Data in memory is accessed thousands of times faster than it is on a disk drive, offering a tremendous performance benefit for applications that are developed to use this greater system memory.
資料在記憶體裡面的運算速度較磁碟快上數千倍,所以記憶體越大,越能夠擁有這樣運算速度上的優勢.

In addition, Windows XP 64-Bit Edition has been designed to take advantage of the superior floating point capabilities of the Itanium processor.
除此之外,Windows XP 64-Bit 版本已經針對Intel的中央處理器之浮點運算功能做了最佳化.

At least Itanium 733 Mhz processor At least 1 Gb of RAM 64-bit motherboard & chipset 1 Plank Greetz go to all planksuppliers and owners Also to our fallen brothers in these crewl plank world. This rls was brought too you by dedicated plankusers.
硬體需求至少需要中央處理器Intel 733MHz,至少1G以上的記憶體,還有可以支援64-bit頻寬的主機板.所有作業相關用的電腦都需要使用這樣的硬體規格!