Chris,
Indeed search for those bin files and delete them, then change your tc to 8192.
And with that engine and mem speed I hope you are watercooled.
I run that card at 1050/1500.
Edit: and set powertune to a positive value; mine is stable at 15. Yours is at -10.
And setx GPU_MAX_ALLOC_PERCENT 200?
200%? Mine is at 100%. Runs fine.
lol i wish it was watercooled, it is air conditioned and has fans running on it all the time, seems to be a steady 75-80C on a Crappy XFX 7970 and only 60C on a AMD reference. my tc is also at 8192 and seems to be doing ok after deleting the other bin files