Using a 1/2 multi, why is this BAD?

[jAkUp]

Yea, don't use half multi's. They cut your memory speed. I really don't understand why though...

[nIghtorius]

Originally Posted by jAkUp

Yea, don't use half multi's. They cut your memory speed. I really don't understand why though...

I thought I had explained this?!...

wait.. :P

I did..

Originally Posted by nIghtorius

The Atlhon64's memorycontroller has a divider..

memory speed=

("FSB" * Multiplier) / (memdivider) = xxx Mhz

memdivider ~= Multiplier, but when multiplier is 10.5x then memdivider will be 11.
when multiplier is 11.5, memdivider = 12, etc.. only when multiplier is xx.0 then memdivider will be xx.0 (equal)

so when running a 260 Mhz "FSB" @ 10.5 multiplier your memory speed is.
memspeed = (260 * 10.5) / 11 = 248Mhz

and @ 10.0 multiplier it is.
memspeed = (260 * 10) / 10 = 260Mhz

see?

The AMD's memory controller has only full multipliers.. that's why it does that..

[jAkUp]

lol sorry, I guess I should read past the first post