You had asked about the i5

here is a quote from the same article the next line down from what you mentioned

"Core i5 products, however, will not have this feature, which means operating systems will recognize the processors as having four core and no more. This will have no affect on the performance of most applications, like web browsers and even games, but it will be a blow to those who use 3D rendering software and other such programs that excel with multi-threading."

 

Frank Hawkins/Owner/DigitalDaydreams

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Frank Lee Hawkins Eastern Sierra Gallery Store

 

My U.S.A eBay Graphics Software Store~~ My International eBay Graphics Software Store