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As long as the host system is running Windows, <a href="http://www.cpuid.com/softwares/cpu-z/versions-history.html" rel="ugc">the freeware CPU-Z</a> can determine the CPU type, memory type and speed, and considerable other information about the system. &nbsp;This is useful when the BIOS doesn't display CPU information, or more information is desired than the simple CPU type listing from Control Panel/System.<br />
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here is how MS does it : &nbsp;<a href="http://support.microsoft.com/kb/827218" rel="ugc">http://support.microsoft.com/kb/827218</a><br />

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i find you selected the wrong answer - your question was &quot;I'm trying to determine the architecture of a pc I have whether it is x86 or x64.&quot;<br />
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and you selected &quot;Those are both 64 Bit processors&quot;
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I'm trying to determine the architecture of a pc I have whether it is x86 or x64.<br />
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Dell Optiplex 380, Intel Core 2 Duo E7500<br />
<a href="http://ark.intel.com/products/36503/Intel-Core2-Duo-Processor-E7500-(3M-Cache-2_93-GHz-1066-MHz-FSB)" rel="ugc">http://ark.intel.com/products/36503/Intel-Core2-Duo-Processor-E7500-(3M-Cache-2_93-GHz-1066-MHz-FSB)</a><br />
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Dell Optiplex 390, Intel i5-2400<br />
<a href="http://ark.intel.com/products/36503/Intel-Core2-Duo-Processor-E7500-(3M-Cache-2_93-GHz-1066-MHz-FSB)" rel="ugc">http://ark.intel.com/products/36503/Intel-Core2-Duo-Processor-E7500-(3M-Cache-2_93-GHz-1066-MHz-FSB)</a><br />

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I'm trying to determine the architecture of a pc I have whether it is x86 or x64.

Dell Optiplex 380, Intel Core 2 Duo E7500
http://ark.intel.com/products/36503/Intel-Core2-Duo-Processor-E7500-(3M-Cache-2_93-GHz-1066-MHz-FSB)

Dell Optiplex 390, Intel i5-2400
http://ark.intel.com/products/36503/Intel-Core2-Duo-Processor-E7500-(3M-Cache-2_93-GHz-1066-MHz-FSB)


Determine architecture (x86 or x64)

Components are those devices that are internal to a computer -- the PC boards, the central processor (CPU), the memory (RAM), disk and video controllers and so on.