I didn't mean 3D acceleration at all. Integrated video cards, especially older ones, compete with CPU for memory access constantly, and take some of its bandwid

I didn't mean 3D acceleration at all. Integrated video cards, especially older ones, compete with CPU for memory access constantly, and take some of its bandwidth. The effect is amplified by higher resolutions of modern monitors. The bigger data traffic to screen (multimedia, compositing), the jerkier the interface. So when you encounter Intel GMA, just put inside any compatible video card from a garbage bin instead of trying to gain performance by simplifying the visuals.