Don't act surprised, this has been coming for a while now.
Shipments of new GPUs were down 2.2 percent year-over-year in the third quarter of 2018, according to industry intelligence firm Jon Peddie Research. That dip was due primarily to AMD and Nvidia, as Intel’s integrated chips saw some growth. JPR founder, Dr. Jon Peddie, explained that shipments slowed for a number of reasons. But an overabundance of supply means that Nvidia and AMD were trying to sell cards it had already shipped.
