I don't have Enhanced Sync turned on, but I know the issue you're referring to. I've known a few people who've experienced it. It's a total black (blank) screen. This isn't that, it's more like the textures on certain elements have no luminosity or lighting effects
some of the comments ive read also do look similar to your problem
This image is from a player with the same video card with similar problems but with another game, turning Enhanced Sync off was just a suggestion for something to try, but if its already off, then maybe try that beta driver, its worth a try at lest, unless the problem is not always there, i myself had problems with AMD drivers and in the end i changed to Nvidia due to the lack of support from AMD.