Here is the source of the story that the refresh of the Microsoft Surface RT
-- the Microsoft Surface RT 2 --
might kick the nvidia tegra 3 chip to the curb.
Google this boys : Three new Surface tablets in development at Microsoft, according to rumor. Digital Trends - by Andy Boxall
"There are three possible new Surface products.
The first could be a follow-up to the existing Surface RT, but with a slightly smaller
8.6-inch screen size and a Qualcomm processor instead of the Nvidia Tegra 3 chip
seen in the current Surface."