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This is the specification of my computer however i have problem finding out how many virtual cores are there in total .

I would like to know if there is any command in windows 7 which would help me determine the number of virtual cores my CPU has

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The link you provided is for all i5 processors, not your particular processor. System (Win + Break) should show your specific processor, and you can look it up in that table. I'm also not sure what you mean by a virtual core. Modern CPUs often have multiple cores on a single chip. Sometimes, those cores have hyperthreading that results in behavior similar to having more cores. –  ernie Mar 21 at 18:22
    
@ernie thanks i have changed it already –  Computernerd Mar 21 at 18:24
    
@ernie what do you mean by Win + Break ??? yea , i think virtual core means hyperthreading –  Computernerd Mar 21 at 18:25
    
So your system has 2 cores, which are hyperthreaded, so they'll appear like 4 cores in some cases. –  ernie Mar 21 at 18:28
    
@Computernerd, hold down the Windows key, and press the Break key. If you have one, not all keyboards do. It'll be at upper right, and may also have a "Pause" label. –  Michael Petrotta Mar 22 at 0:21

4 Answers 4

up vote 4 down vote accepted

You can pull the information from WMI via PowerShell:

PS> WmiObject -class win32_processor -Property Name, NumberOfCores, NumberOfLogicalProcessors | Format-List -Property Name, NumberOfCores, NumberOfLogicalProcessors

Will produce something like:

Name                      : AMD Phenom(tm) II X4 955 Processor
NumberOfCores             : 4
NumberOfLogicalProcessors : 4

Add a -computername <computername> argument and you can pull the info from networked computers as well.

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Try the following from a command prompt:

wmic cpu get name,numberofcores,numberoflogicalprocessors

As noted by techie007 in his answer, you can pull information from remote computers by adding a /node:<computername> between wmic and cpu, and replacing <computername> with the name of the host you would like to query. The /node: parameter can be used on any WMIC query, not just this one.

Hope that helps.

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You can use a software such as Everest, or the freeware CPU-Z to find out your system specifications. If you boot a Linux Live CD, then just open the System Monitor.

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Press Ctrl+Shift+Esc to open Task Manager and switch to Performance tab. There will be one CPU graph for each virtual core.

On Windows 8 you'd have to expand Task Manager's window first (More details button) and switch graph type because it displays overall graph by default.

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If you only want to know the number of virtual cores, this is the way to find out. –  Kard Nails Mar 21 at 18:41
    
This method doesn't distinguish between physical cores and logical cores . . . no way when I see 4 to know if it's 2 hyperthreaded cores, or if it's 4 physical . . . –  ernie Mar 21 at 20:48
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@ernie OP explicitly asked for "virtual" ie. logical cores. –  gronostaj Mar 21 at 20:59
    
The resource monitor can provide better clues, the virtual cores will show "parked" when mostly idle. –  Psycogeek Mar 22 at 0:25

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