I just upgraded to a 144hz monitor and a 290 this Christmas, to celebrate them working on Mesa. And yeah, they work pretty flawlessly, even in my now 3 monitor setup.
And Quake. Holy shit. Playing that game at 144hz makes it feel incredibly real, even if its blocky and pixilated, the movements are incredibly organic and the camera turning feels like a head turning rather than spinning around on Google Maps.
And Quake. Holy shit. Playing that game at 144hz makes it feel incredibly real, even if its blocky and pixilated, the movements are incredibly organic and the camera turning feels like a head turning rather than spinning around on Google Maps.