Pretty sure NVIDIA has done the same on occasion, for example the 800m GTX series, doesn't have an 800 GTX desktop counterpart. Many of the 800m cards used the

Pretty sure NVIDIA has done the same on occasion, for example the 800m GTX series, doesn't have an 800 GTX desktop counterpart. Many of the 800m cards used the same chips as 700m series, just with small changes. Apparently they were originally planning on releasing Maxwell as 800 series, but due to Laptop manufacturer pressure ended up deferring it after releasing Kepler 800m cards.