DDR3/CPU bus speeds

[Ninja_Mouse]

I have arriving today:

OCZ Platinum 4GB (2x2GB) DDR3 PC3-10666C7 1333MHz
Foxconn BlackOps Intel X48
Intel Core 2 Duo E8500

My question is about how the bus speeds should be configured. I've read a few articles relating DDR2, but I'm not sure about DDR3 because it has so much more bus speed.

From what I understand the CPU's bus is actually 1333Mhz/4=333Mhz and the RAM is actually 1333Mhz/2=666Mhz. I read that DDR2's bus is actually half, but is this the same for DDR3? I ask because I understand that, idealy, one wants to get the CPU and RAM bus to match 1:1.

So that makes me wonder two things. Is DDR3 bus speed rated at 4 times rather than 2 times? e.g. 1333Mhz/4=333Mhz. Or is a RAM to CPU bus ratio of 2:1 better than 1:1?

If anyone could set me straight on this, that would be great!

 

[MaDMagik]

Base clock in your case = 333Mhz. With a 2:1 ratio that becomes 667Mhz for memory and that equals ddr3 1333(double data rate, its the same for ddr2 and 3, it doesnt really run at 1333Mhz)

So with your base clock at 333Mhz with 1:1 ratio you will only get ddr 667, which is a bit measly compared to the memory spec.

I personally dont believe that 1:1 ratio is that much better than any other nowadays, Im yet to see a hard proof that says otherwise. And even if there are real benefits from running memory at 1:1 i dont think they can compensate for halving the memory bandwidth.