First of all, hello 
I'm in the process of writing a piece of university work, the aim is "to produce a concise, articulate, introduction to your given topic"
Ok my given topic is Clock Multiplying and I'm required to write approximately 3 A4 sides.
Now after a couple of days research I've come to the conclusion that there really isn't much to the subject, so I'm trying to add little bits in to bulk it out, including QPI and HyperTransport.
From my understanding clock multiplying was introduced as CPU technology progressed faster that other components which yielded a faster component so a multiplier was used to allow the processor to run synchronously with the motherboard buses at a faster speed.
I wrote a bit about the History, i.e. Intel's first implementation, the fact that the multiplier and the base clock rate were set via jumpers, etc.
I also understand, back then the base clock rate is actually the FSB speed.
Now I am trying to explain how the multiplier works in new technologies, QPI and HyperTransport, but I don't quite get it. Lets use HyperTransport as an example.
To work out the transfer rate we use the formula: Transfer rate = width (number of bits) x clock x number of data per clock cycle / 8
So a motherboard with a 5200 MT/s limit should have a clock rate of: 1300MHz (5200 * 8 / 2 /16)
So is this base clock rate or what? because if I take a (AMD Phenom II X2 Dual Core 545 3.00GHz) which has a multiplier of 15 and i divide the CPU clock rate by the multiplier i get 200Mhz which is != 1300MHz?!?!?!?!
Where is the base clock rate derived from?
I'm in the process of writing a piece of university work, the aim is "to produce a concise, articulate, introduction to your given topic"
Ok my given topic is Clock Multiplying and I'm required to write approximately 3 A4 sides.
Now after a couple of days research I've come to the conclusion that there really isn't much to the subject, so I'm trying to add little bits in to bulk it out, including QPI and HyperTransport.
From my understanding clock multiplying was introduced as CPU technology progressed faster that other components which yielded a faster component so a multiplier was used to allow the processor to run synchronously with the motherboard buses at a faster speed.
I wrote a bit about the History, i.e. Intel's first implementation, the fact that the multiplier and the base clock rate were set via jumpers, etc.
I also understand, back then the base clock rate is actually the FSB speed.
Now I am trying to explain how the multiplier works in new technologies, QPI and HyperTransport, but I don't quite get it. Lets use HyperTransport as an example.
To work out the transfer rate we use the formula: Transfer rate = width (number of bits) x clock x number of data per clock cycle / 8
So a motherboard with a 5200 MT/s limit should have a clock rate of: 1300MHz (5200 * 8 / 2 /16)
So is this base clock rate or what? because if I take a (AMD Phenom II X2 Dual Core 545 3.00GHz) which has a multiplier of 15 and i divide the CPU clock rate by the multiplier i get 200Mhz which is != 1300MHz?!?!?!?!
Where is the base clock rate derived from?