Nvidia and AMD aren’t friends. Over the years, their game of one-upmanship has evolved into a full-on war, with proprietary tech and buzzwords whizzing every which way through the open air. The latest chapter in the ceaseless struggle? A claim from AMD’s Robert Hallock that Nvidia’s GameWorks program – used prominently by Ubisoft in Watch_Dogs, among others – represents “a clear and present threat” to PC gaming. According to Hallock, participating in Nvidia’s program often forces game developers to steer clear of AMD. Nvidia, however, says that allegation couldn’t be further from the truth.