Thank you so much !
This is exactly the answer I was looking for !!

So not only is a Core2 Duo CPU counted as 1 CPU, SQL Express uses both in parallel processing.

Youre a legend Gspurge

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How CPU count is determined for licensing

a.. SQL Server Express can be installed on a computer that has more than one CPU, but it will use only one of the CPUs. When it determines the CPU count for the purpose of licensing, SQL Server Express counts only the physical processor chips in the computer. A single core CPU, a dual core CPU, and a hyperthreaded CPU are all considered to be a single CPU by SQL Server Express.

How CPUs are used during processing

a.. SQL Server Express does recognize the additional processors that are available when it is installed on a computer that has multiple core and hyperthreaded CPUs. A separate scheduler is started for each core in a multiple core CPU, and for each logical processor in a hyperthreaded CPU. For example, if you have a dual-core CPU, two separate schedulers are started by SQL Server Express and available for use. This lets SQL Server Express use a degree of parallel processing within the limits of the single CPU that is being used.

b.. ====================================================================================

----- Original Message ----- From: "gspurge" <[EMAIL PROTECTED]>
To: "General Practice Computing Group Talk" <[email protected]>
Sent: Saturday, February 24, 2007 7:04 PM
Subject: Re: [GPCG_TALK] SQL Express 2005 question




Andrew Patterson wrote:

I can't help out with the initial query which was whether
for _licensing_ purposes, a dual core is classified as
multiprocessor.


The microsoft site says SQL Server Express counts physical processors. http://msdn2.microsoft.com/en-us/library/aa337277.aspx
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