Turning to the 2D performance, the GTK widget performance was in NVIDIA's favor too. With the GtkComboBox widget there was a slight but noticeable lead over Intel, even when it was using EXA acceleration. Granted, Intel's open-source driver stack is currently going through some invasive changes as we have talked about many times previously.
The GtkToggleButton test was also faster with the ION.
The same goes for the GtkCheckButton.