PSB, FSB, Memory, Hyperthreading, Hypertransport,

sao123

Lifer
May 27, 2002
12,653
205
106
see report here.... Intel to raise bus speed on I925X to 1066.
http://www.xbitlabs.com/news/chipsets/display/20040413081748.html

Its been a long time, I'm trying to re-understand the nature of the system bus, northbridge, southbridge, cpu bus, memory bus etc.....

ok now can someone remind me how all this translates?

533 FSB = quad pumped 133mhz = dual channel 533 mhz rdram
800 FSB = quad pupmed 200 mhz = dual channel 400 mhz ddr memory
1066 FSb = Quad pumped 233 mhz = dual channel 533 mhz ddr memory

What would it take to run the 667mhz dual channel ddr memory as suggested in the article?

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Now how does AMD hypertransport work?
I dont know much about hypertransport other than its different than hyperthreading.
 

Lynx516

Senior member
Apr 20, 2003
272
0
0
Hypertransport is a point to point data link. It is like the FSB on a P4. It transports data from the northbridge to the CPU. AMD just use a non propriety bus so they can put things like PCI-E/X busses directly on the link as well as AGP devices without the need for proprietry glue logic.