I have 6Gb 1333 Ram 8-8-8-20. Do i get better performance leaving it run at 1066 or turning it up to 1333 which is it speed? I know it runs at 1.5v but is labeled at 1.8. What are the best settings for it and voltage? What timings should i put it at?
If the ram is rated to run at 8-8-8-20 1333 then that would be the settings you should be using it at, and yes, that, depending on the application, should give you a small speed improvement, nothing you would likely notice other than in benchmarks though.
Could you post a link to the ram, as a 1366 kit with a 1.8 voltage setting sounds strange since the max recommended is 1.65.