In Gartner's assessment of the server market in the fourth quarter of 2009, X64 servers and blades in particular were singled out as the growth engines. With IDC's similar, but different, report Thursday we learn that the Windows platform was the real beneficiary of the bump in sales. IDC tracks factory revenues by the server manufacturers, while Gartner tracks revenues that add vendor and reseller sales together. So their numbers are never quite the same. But they are similar, and they track. Gartner talks about sales by X64, RISC, and Itanium processors, while IDC looks at server sales by the primary operating system deployed on the boxes.
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