11.7 WHQL fixes it too, but both 11.7 and 11.8 now trigger max cpu usage in *any* opencl app.
What I've found is that it
appears to use 100% CPU, but that processing time is not actually tied up. I can mine on two of my 6990s and play a very demanding game on the other one (which I assume is also using shit-tons of CPU power, and not experience any slowness from either application.
So, I think the 100% CPU problem shouldn't really be a consideration when choosing drivers... unless your experience had been different.
Yes and no. I've experience the same thing. The 100% CPU bug will not bog down other processes and apps because it will cede the CPU power back over if need be. The problem is that it still runs at 100% regardless, so it's using that extra power constantly to keep the CPU at 100%. If your CPU is a 95W CPU, it's using 95W extra that it doesn't need to be using. If you have multiple rigs, that extra power draw can add up quickly.