Quote Originally Posted by shimmishim View Post
the only way to tell is to test for yourself.

in the 360 range, 4:5 (266/667) will be the max ratio you should be able to use so test it out.

at 360, you should be able to do 3-3-3-8 with less than 2.2-ish voltage as well. see if this gives you a gain as well.
I tried 3 for Tcl from 2.04 to 2.20v and it won't work. I'll give 266/667 a try. How do I tell if one setting is faster than the other? By running 32M SuperPi and comparing the times?