Quote Originally Posted by Don_Dan
Well, I agree with you that the data about HYK0 is pretty limited because most people test their Samsung LV/LP modules for energy saving settings at low volts, but I've seen some binned modules do very well at higher voltages. Please check this thread. You can see that the best modules are comparable to the Samsung value sticks with HCH9 we have seen. I don't think I'd prefer HCH9 over HYK0, but we might see more HCH9 just because they're cheaper. Another problem might be that most people don't bother to remove the heatspreader, for them it's good enough to know they have Samsung chips, so our data is limited on that side as well.
HCH9 is cheaper than HYK0? Maybe for you, but not here. The generic HCH9 stuff sells for about the same price, or a few more $ (US) here than the HYK0 Samsung LV stuff. The HYK0 based Greens were recently on sale for $36 shipped per 2x4GB kit at the egg, or individually for $17 per module. The generic HCH9 sells for about $22 per module, plus shipping at the only two places that I know it can be had.

As for preferences, I still believe that as a general rule your chances of higher clocks are with the HCH9. Not saying that there isn't HYK0 that clocks good, just that in my mind I think the odds are better with HCH9. If GSkills and others start binning HYK0 and begin to mass produce high-end modules with them (not just a few here and there), then I won't be too proud to admit I was wrong. At my age I've had plenty of practice at admiting I had it wrong.