Conclusion
If you use CAD - CAM ,3D Animation software or you render animations and time is money for you, Dual Xeon solutions will worth every penny. The hyper threading technology really helps for these kinds of applications. Lightwave, Maya, 3DStudio Max and Specviewperf results points Dual Xeons with hyper threading technology.
If you are only a gamer, Dual Xeon means throwing away your money. Quake III and 3DMark 2001SE points to the Pentium 4. Hyper threading is not really important.
For Office applications users; It would be an overkill to buy a Dual Xeon system unless you use really heavy financial applications and databases. Even under heavy load a Pentium 4 will be OK for you. The Sysmark 2002 Office Productivity points to a Pentium 4 and hyper threading support helps.
For Internet Creation, Adobe software users, film editing and photography enthusiasts; If you have the money, a hyper threading disabled Dual Xeon would be great. If you have limited money Pentium 4 with hyper threading support is OK for you.
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