It is exactly what you said:
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Update (3/9): Shortly after this story went live we got on the phone to discuss this SKU with Intel representatives, who claim it was conceptualized as a complement to the company’s recently-released Clarkdale-based Core i5s and Core i3s.
As you know, those are dual-core models with TDPs of 73W and 87W. The Core i5-750S and its 82W TDP is, according to Intel, the only quad-core Nehalem-based processor able to fit within the same thermal constraints and employ the same thermal solutions as the Clarkdale-based CPUs.
While we don’t have any examples of smaller form factor designs enabled by the 13W savings, Intel is adamant that the Core i5-750S is intended for the channel and its unique needs, rather than...