mac

US Mac sales fell year-on-year as part of the global decline in the PC market as consumers switch to tablets, phablets and smartphones – but the two major market analysts produced wildly differing estimates of the size of that fall.

IDC has a dramatic drop of 11.2 percent, from 2.14M in the third quarter of 2012 to 1.9M in the same quarter this year, while Gartner shows a much more modest decline of 2.3 percent from 2.2M (close to IDC’s number) to 2.1M. The only point on which both agree is this is the first Q3 decline in Mac sales since 2002, a quarter usually assisted by the back-to-school market …

The credibility of the numbers doesn’t improve when you look at overall US sales across manufacturers: down 0.2 percent according to IDC, while Gartner has them up 3.5 percent.

Gartner

Gartner

IDC

IDC

The two are at least in broad agreement on the worldwide numbers, with the global PC market declining either 7.6 (IDC) or 8.6 (Gartner) percent. But something somewhere is screwy in the US estimates …

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