Shipments of graphics chips surged during the second quarter, bucking seasonal trends as hardware makers gear up for an expected uptick in PC sales.

On a quarterly basis, sales of graphics chips jumped 31.3 percent, to 98.3 million units sold, analyst firm Jon Peddie Research said Monday, noting that graphics chip sales usually decline during the first two quarters of the year ahead of a mid-year slowdown in PC sales. Normally, graphics chip sales don't start to pick up until the third quarter as hardware makers gear up for the year-end selling season.

"This year preparation seems to have gotten off to an early start," the research firm said in a statement.

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