1066 MHz justified?

[aircommando13]

I am in the process if building my new gaming rig, and am looking at 4GB. I was originally going to get the renowned(and cheap) Patriot 4x1GB dealio at 800MHz, but since I have the EVGA 750i FTW mobo I decided to look at the 1066 Mhz memory. I saw the green PAtriot Viper 4GB(2x2GB) SLI ready deal, and it looks fast too.

I guess my questions are Is 1066 justifiably faster than 800 Mhz? And will the SLI ready memory give me some kind of boost of the regular one?

[Apoptosis]

4GB of DDR2 800MHz memory is $39.99 shipped free, which is hard to beat... how much is the 1066MHz kit??

SLI memory doesn't give you any performance boost, it just sets the timings for you if your motherboard supports SLI memory. If it doesn't then you are buying a memory kit and paying for a licensing fee that you can't even use. Personally, I still manually set all my memory timings in the BIOS and don't use XMP or SLI memory profiles.

[aircommando13]

Thanks for clearing that up, I'd prefer to manually set the timings as well.

I ordered an $80 kit of Patriot memory, 4Gb (2 x 2GB) at DDR2 800 with timings of 4-4-4-12. It says voltage is 2.2 volts, so that should leave some headroom for over-clocking to 1066Mhz manually correct? I'd have to set the timings to 5-5-5-15 obviously, but that with an adjustment of fan speed would be enough to push it that speed right? I have a feeling though this is one of those "just try it yourself" things to find the real answer.

NOTE: 3 parts left to get for my computer, and let me just say it sucks budgeting for a new computer when you get paid 12k a year.