Intel is going in for the kill. The company has lowered the lowest SDP (Scenario Design Point, different from TDP) rating of Haswell based microprocessors from 6W to just 4.5W. The difference might not look like it's much (just 1.5W), but it is quite significant. While 6W wouldn't allow OEMs to use the processor in compact form factors like tablets, 4.5W will allow the same OEMs to go for fanless, passive-cooled Haswell powered tablets. Intel will ship very limited quantities of 4.5W SDP Haswell SKUs. Of course, this opens up the possibility of these new Haswell chips to end up being used in Microsoft's next-generation Surface Windows 8 Pro tablet. If Intel manages to squeeze in an underclocked HD5000 GPU, there'll be nothing like it. Intel hasn't released any information regarding the exact specifications of the SKUs, pricing, or shipping dates.