Hi vinceASPECT
700 mhz on ARM is equivalent to about 1 ghz + in intel terms.
That sounds like the kind of meaningless dribble a marketing department would spout when trying
to push a product. You are basically comparing a RISC processor to a CISC processor without
stating what the measurement is based on. If you use a benchmark that measures MIPs, then it is
quite possible that the ARM chip will produce higher numbers, however, that does not make it the
faster processor. It just means it can execute more instructions per second but does not tell you
how much work is actually done. While there are many benchmarks out there, most, if not all, will not
give you meaningful results for two basic reasons.
1. Certain tests will favor one processor or the other depending on any special capabilities it may have.
2. A benchmark is not the actual end application you will be running.
A blanket statement that processor A is faster than processor B can not be taken at face value since
it is application specific. The only honest measure of speed is to code the end program for each
processor taking advantage of any special instructions they may have, utilizing any built in hardware
support, making optimum use of any caching capability, and timing how long it takes to execute. Even
with all of this, the end result will still be dependent on the design of the board the processor is
mounted on and the hardware it is connected to.
While far from being a complete treatment of this subject, the bottom line is that a generic statement
that one processor is faster than another is not meaningful.
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