OK i recently upgraded to an XFX 4GB 380 as my old card had died. i installed the new Crimson drovers and all seemed OK. However when playing WoW every thirty to sixty seconds or so i get small stutters. Almost like it's missing a frame or two? anyone else had this or have any ideas how to cure this? Apart from this it's running well usually at 100->109 fps.
I have the same card and have had driver issues for a month now. You can try rolling back to driver version 15.7.1 and see if that helps. It fixed a lot of my issues but it doesn't work with Rainbow Six Siege so if you are not playing that particular game I think the 15.7.1 drivers should work for you. Good luck!