Single 2GHz would always either outperform or perform the same when running one program, but if you're running more than one CPU intensive program, the results would be much harder to determine. What would you be using it for?
<font color=blue>If you don't buy Windows, then the terrorists have already won!</font color=blue> - Microsoft
That's an easy question. 2Ghz will always beat dual 1Ghz. First of all just because you have dual 1Ghz machine doesn't mean it's going to have twice as much preformance. For most of the application the second processor will just sit there idle. Also for dual CPU Platform you have to have NT base OS. 9x can't take advantage of dual platform.
I think you can safly replace the "may not be fa..." with "Will not".
though the 2Ghz Pentium 4 will outpreform the dual Durno Significntly on almost any task and will prolly beat it on most "optimized" (multi threaded) tasks as the benfits of SMP on Microsoft (TM) windows XP/NT (R) bassed machine should not undo the around ~70% diffrence there is between these 2 CPUs on single CPU compration.
This post is best viewed with common sense enabled<P ID="edit"><FONT SIZE=-1><EM>Edited by iib on 04/19/02 12:07 PM.</EM></FONT></P>
There is not many apps that will use the dual setup so the second cpu will idle most of the time. Unless you use apps a lot which can benefit having dual setup.
I would get a single cpu setup and use the saved money on 1. an even faster CPU, 2. more ram if needed, 3. something I still don't have but want. But if you're not lucky and the saving isn't that much then just take your girl out for a small dinner (an unexpected dinner can up your chances that night for a nookie ).
<font color=red>Computer upgraded, now need a place to live, and a good divorce lawyer.</font color=red>