"GPU shipments down in fourth quarter of 2014.
Nvidia gained at the expense of AMD and Intel. Gaming is still the market's bright spot.
The new market report on graphics processing units (GPUs) from Jon Peddie Research (JPR) shows total shipments were down in the fourth quarter of 2014 (ending December 31, 2014). Measured on a sequential basis, Nvidia shipments were up 3%, Intel dropped 4%, AMD slipped 7%."
http://gfxspeak.com/2015/02/20/shipments-fourth-quarter/