Same problem with 7900gre overclock vram. It is worth noting that crashes mostly occur under low load.
24.5.1 driver is better than 24.3.1 and disable anti-lag\freesync\MPO will be more stable.
However, when I quickly drag the progress bar and switch between full screen and windowed with my MPH-madVR viedo player, it can randomly cause Grey Screen.
So, i am very worried about whether it can be stable in high-load games.