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Single core shows as dual core in windows xp

Last response: in CPUs
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March 23, 2012 9:07:50 AM

Hello, when i go into task manager under the "performance" tag my CPU has two graphs like a dual core, they also show different readings. Is this normal? In the "View" menu in "CPU History" the "One graph per CPU" option is selected. My CPU is a Pentium 4 2.8Ghz. I was wondering if its not normal does it affect my computers performance in anyway? Thanks, Nick
March 23, 2012 9:16:35 AM

its sounds like 'hyperthreading' its acts like a virtual cpu so you will have two graphs.
March 23, 2012 11:53:41 AM

Definately hyperthreading, nothing to worry about.
a c 188 à CPUs
March 23, 2012 2:49:25 PM

The processor that you have is the Intel® Pentium® 4 2.8GHz 800fsb and will be one of these processors http://ark.intel.com/compare/27459,30763,30764,27460,27... all of them have hyper-threading. Hyper-threading in Windows task manager shows up as 2 cores to represent the 2 threads that it is able to run.


Christian Wood
Intel Enthusiast Team
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