Huh? I'm not absolutely certain about what your question is but here it goes. Overclocking will help you out regardless of what you do with your memory unless you severely cripple it. Using a divider can, for the most part, allow you to keep your tight timings even when you overclock so going for a high-clock loose-timings setting on the ram is just a personal preference that some people have (I think it comes from the fact that back before the A64 not having your FSB 1:1 with the ram was horrible, now, since the A64s "FSB" runs at core clock it makes no difference). Bandwidth does help in some instances but having tight timings helps in others. Overall it's better to have high-clocks with tight timings (heh) but this is only achievable on some very high-voltage dimms.