Bus speeds and CPU Speeds

Do you have a question? Post it now! No Registration Necessary.  Now with pictures!

Threaded View

I'm trying to get a handle on the difference between 400 Mhz front side
bus and 533 Mhz front side bus. Would there be much of a difference
between the two for use with either a Celeron or Pentium M? Is there a
"rule of thumb" as to what bus speed is suitable for different
processors? I'm looking at possibly getting a notebook in the next 1 or
2 months.

I'm a part time IT student and I'm trying to start up an IT business
using Java so typically I could have about 5 or 6 applications open at
the same time.

I've currently got a Pentium 2 - 350 so anything would be an
improvement, even a Celeron. I suppose, given I'm on a budget of up to
about $2000 (Australian) for a notebook I should be asking which
Celerons would give me a big enough performance difference compared to
my current Desktop Pentium 2-350mhz with 448 Mg of PC100 SDRAM.


Peter Mount

Re: Bus speeds and CPU Speeds

Quoted text here. Click to load it

Well, obviously the 533 is a good 1/3 faster, which is probably
worthwhile.  One of the hidden secrets of PCs lately is that the FSB
speed is far more important than the CPU clock, now that there's such
a discrepancy between them.  1/3 higher CPU clock will not get you 1/3
more performance, though 1/3 faster FSB probably will.

There's an argument to be made for lots of memory so you don't have to
use virtual memory, and a high speed (7200RPM) disk drive [or a
moderate-speed (5400RPM) drive with a large cache], as these are
important bottlenecks as well.

No one factor is the only important one in PC configuration, and
laptops are always a compromise between size/mass, battery life, and

Site Timeline