Same here. If you press Alt+F (default) and bring up the in game FPS display, I tend to notice the most jutters when you see FPS xx [CPU] - Mostly occuring in congested areas. I notice no jitters when you see ...[GPU] It becomes utterly unplayable over large structures - like amp stations in particular. Also noted that the buildings take a while to load all their components (for example, the banner showing which faction owns the facility)... causing more jutters. All since GU4.