amd chips i got a question...

[Furl]

ok so i was lookin at the amd socket 939 chips and was wondering what it meant when it said the front side bus is Integrated into Chip??

 

[biostud]

On P4 and AthlonXP and older CPU's the memory controller is located on the Northbridge, and the FSB indicates the speed between the CPU and the memory controller. On A64 the memory controller is loacted on the CPU, so that's why it says so, even though it's the wrong term to use in this case. (In very short terms)

 

[Furl]

so will it b only as fast as the mobo fsb allows? for example i want a venice chip with a asus board that supports 1000mhz fsb will that b the fsb of the chip??

 

[biostud]

Originally posted by: Furl
so will it b only as fast as the mobo fsb allows? for example i want a venice chip with a asus board that supports 1000mhz fsb will that b the fsb of the chip??

A64 does not have any FSB whatsoever. The have "HyperTransport Technology" that runs 1000Mhz on most boards, which runs 5x200Mhz.

The CPU multiplier is linked to the 200Mhz HTT, as it will run 9x200 (1.8Ghz)for a 3000+ A64 s939.

 

[Furl]

so in laymans terms it will have a 1800mhz fsb?? i dont get it break it down for me...

 

[biostud]

Originally posted by: Furl
so in laymans terms it will have a 1800mhz fsb?? i dont get it break it down for me...

No, it won't never ever have any FSB. Period.

The CPU will run at 1.8Ghz, have a 1000Mhz HTT link in which data is transfered to and from the CPU. In a very broad simplyfication you could call the HTT=FSB, but it's an incorrect term.

 

[RichUK]

Originally posted by: Furl
so in laymans terms it will have a 1800mhz fsb?? i dont get it break it down for me...

let me break it down for you bro...

you have a 3200+ S939

this =

200Mhz HTT which some people call FSB, same diff just the HTT is a dedicated bus\link from the memory to the CPU, unlike the P4's using the FSB to communicate the whole sytem,.. for example graphics card bandwidth, memory bandwidth, PCI bus etc etc.. so the memory has to fight for bandwidth from the whole system trying to communicate, where as AMD's do not .. so you have 200Mhz HTT and thats that ..

you have a clock generater which is set at 10 on the 3200+, the clock generator set the electronic pulses which would be 10 times the HTT, and the stadard HTT is always 200Mhz for now ..

so 10x 200Mhz = 2.0Ghz and this is the speed of your Proc the 3200+..

you hav also get the HT (Hyper Transport), which is deemed as a link, this is what you are getting confused with.. this is set at a 5x mutli on the HT for s939, and 4x for the S754, which equals 1000Mhz HT for s939 and 800Mhz HT for S754, as default!!

so 200Mhz HTT x 5 (5x multi on the HT) will = 1000Mhz .. which is what you have

at the end of the day dont worry about the HT of 1000Mhz, just think to yourself the HTT/FSB is 200Mhz and the AMD3200+ has a top locked multi of 10x..

just a breif overview

RichUK