Some more details: Board is the Gigabyte X58A UD3R. Both are 6GB and both are exactly the same price.
I guess what my question comes down to is, does the 1866mhz give me more flexibility in terms of OC the i7 930 chip (22 multiplier)?
Is this more important than the improved timing (6 vs. 9) of the 1600mhz RAM in everyday use?
Because this is my first time OC, I went ahead and picked up the Corsair H50 water-cooling system. Thanks in advance for your help.