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Dor
Luke Warm
Joined: 14 Feb 2003
Posts: 156
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 Posted: 08/03/04 - 07:10 Post subject: CPU question
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what kinda of difference will I see between 400 533 800 fsb -- ie what does it do/mean
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Obmar
RealPoor Sensei
Joined: 22 Oct 2002
Posts: 1934
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Posted: 08/03/04 - 09:07 Post subject:
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http://www.computerhope.com/jargon/f/fsb.htm
/snip
Short for Front Side Bus, FSB is also known as the Processor Bus, Memory Bus, or System Bus connects the CPU with the main memory and is used to connect to other components within the computer.
/endsnip
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sinrakin
RealPoor Master of Posts
Joined: 11 Oct 2002
Posts: 7044
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Posted: 08/03/04 - 09:28 Post subject:
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Front side bus speed is basically the speed at which your CPU wants to access memory, so it can do stuff without having to wait for the memory to respond. As such, it's pretty closely tied to the CPU speed/power - having a faster FSB with a slow CPU isn't going to help any. It's also tied a little bit to your application: programs that access a lot of data are probably going to be more sensitive to FSB speed than programs that access a little data but are heavily computational. I'd guess games are somewhere in the middle as far as memory access goes, but leaning a little more toward heavier memory than CPU.
FSB is actually the speed at which you talk to the memory controller; the memory controller may talk to the memory at a different speed, but if it does that's usually just to make the system flexible enough to handle different memory technologies.
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