Mobility Site - View Single Post

Kodack · 06-07-03, 07:12 PM

I use the comparison of a car engines max RPM to people's fascination with MHZ.

Thinking that a 300mhz processor has to be twice as fast as a 150mhz processor is like saying that a 6000rpm motor is twice as powerfull as a 3000 rpm motor. Both statements are false.

If motor A is 400HP with a 5000RPM redline
and Motor B is 100HP with a 7000RPM redline
which is faster?

IF CPU a is a 30MIPS processor running at 1000MHZ
and CPU B is a 10MIPS processor running at 1500mhz
which is faster?

The most accurate way to compare different processors is their MIPS or Gigaflop values, not their clock rate. One has nothing to do with the other.

And game systems have multiple co-processors that actually handle the video and audio (like a 3d accelerator in a pc) that have to be emulated by a single CPU. Someone pointed this out earlier and it's a good statement.

06-07-03, 07:12 PM	#18 (permalink)
Kodack Aximsite Rookie DAP Freshman Join Date: Jun 2003 Location: Dallas, TX Posts: 44 Thanked 0 Times in 0 Posts	I use the comparison of a car engines max RPM to people's fascination with MHZ. Thinking that a 300mhz processor has to be twice as fast as a 150mhz processor is like saying that a 6000rpm motor is twice as powerfull as a 3000 rpm motor. Both statements are false. If motor A is 400HP with a 5000RPM redline and Motor B is 100HP with a 7000RPM redline which is faster? IF CPU a is a 30MIPS processor running at 1000MHZ and CPU B is a 10MIPS processor running at 1500mhz which is faster? The most accurate way to compare different processors is their MIPS or Gigaflop values, not their clock rate. One has nothing to do with the other. And game systems have multiple co-processors that actually handle the video and audio (like a 3d accelerator in a pc) that have to be emulated by a single CPU. Someone pointed this out earlier and it's a good statement.