Is my FSB (CPU) handles MemoryBus (RAM)

[mtrailboy]

Hello guys, i have a BIG question here, please help me!

As i know, NorthBridge (MemoryController) connects RAM and CPU throw two BUS'es.

I have AMD Phenom II X3 B73 CPU. One site offers FSB of 667Mhz, while another says, that's 200Mhz.

Seems like the second is right, because in the BIOS i`ve found the FSB of 200Mhz (it's default setting). If that's true, i`m really sad. I know, that AMD uses "dual pump" method for transfering data from Memory controller (NorthBridge) to CPU over FSB (Front Side Bus) and the same from RAM to Memory controller over MemoryBus. While this is still TRUE, then i`m a little bit happier here, because my FSB becomes from 200Mhz to 400Mhz, which means twice faster, but still unbelievably slow!

Guys, does this mean, that my RAM can perfrom at 400Mhz (DDR3 800) as a maximum value at current FSB speed of 200Mhz (at BIOS, which needs to be doubled, cuz of AMD data transfer technology)? Am I right?

If i`m right, then i need to rise (overclock) the current FSB (200Mhz) to 267Mhz AT LEAST to be ABLE to handle DDR3 1066 RAMs? It's crazy!!!!!!!!!

It's really crazy, I'm pretty sure that I'm missing something. Is it possible, that FSB not need to handle the same frequency as MemoryBus? For example, FSB could be slower then MemoryBus? Which means, the tricky part here is to handle different frequencies of two bus'es, and that part takes the MemoryController and some how it handles and pumping the CPU with correct data from rams without, called, BOTTLENECK?

Linas.

 

[mtrailboy]

Okey guys, i found some info about "Effective Bus Speed". Seems, that i'm right about comparing FSB to MemoryBus (speeds), which must be 1:1 similar to avoid any kind of "bottleneck". The effective speed calculates like this:
* if u're using DDR, the FSB (which shows in the BIOS) x 2.
* if u're using DDR2, the FSB (which shows in the BIOS) x 2^2 = FSBx4.
* if u're using DDR3, the FSB (which shows in the BIOS) x 2^3 = FSBx8.

p.s. multiplier is 2 for AMD family CPU's.

For example, my FSB (which shows in the BIOS) is 200Mhz, I'm using DDR3 so i must multiple 8 times my FSB and i'll get the effective FSB.
* 200 * 8 = 1600Mhz <- Thats the frequency, in which my processor communicates with my memoryController.

Next part - set the right MemorySpeed to achieve best performance of my DDR3.

All these kind of information i picked up from zero to this in two days (working hours only), it's allmows a New Year, thats why, haha.
Leaving the discussion for a while and will be closed as answerd by myself ^^.

Linas.