Another setting — “CPU Ratio Offset When Running AVX” — appears to be a way to cheat in overclocking charts. Operating in the reverse of “Enhanced Turbo” ratios, it reduces the CPU multiplier whenever AVX-based stress tests such as Prime95 are used. Although this allows overclockers to claim ultra-high stable frequencies, we don't consider an overclock stable until it's able to support a complete CPU load.
Fantastic idea. Basically it just follows along the line of all on Intel's power saving technologies and I'm amazed it took so long for it too be implemented. You set up your OC and it's stable at 5.0 GHz .... however, when AVX is present... voltage jumps 0.13 volts and this brings you to a place that you don't want to go. As a result:
a) You can enjoy your 5.0 Ghz OC w/o worrying about any potential degradation that might occur when / if you run an application that uses AVX.
b) When you want to run a application that uses AVX, no rebooting to load a lower BIOS profile w/ lower CPU Multiplier and voltage... it all gets done automatically.
Hope the rest of the industry follows suit... finally an innovation that is not "all about bling".