Yvan256 said:
Well, the MHz myth is real, but so are the numbers. I'm not even talking about PC vs Mac here, I'm talking Intel vs AMD. I've said it a lof of times in many forums, but I'll repeat it briefly here for the sake of the argument.
I'm running the "World Community Grid Agent" on my Windows XP PC. My CPU is an AMD Athlon XP 2400+. According to the agent, an Intel Pentium 4 @ 1.5GHz scores "100". My Athlon "2400+" sure isn't clocked at 2.4GHz, it's AMD marketing to make sure people compare their CPU to a Pentium 4 at 2.4GHz.
My CPU runs, in fact, at 1.92GHz. Wow, a huge 508MHz below the marketing speak. But how does it compare, in pure computing power? According to the WCG agent, my computer CPU score is 192.
Intel Pentium 4 @ 1.5GHz = 100
AMD Athlon XP 2400+ @ 1.92GHz = 192
That means my Athlon is 1.5 times faster than a Pentium 4 for the same clock speed. That's the MHz myth at work. But in reverse. My lower-clocked CPU really IS faster than a faster-clocked CPU. Even when staying in x86-land.
MHz myth is only partially true at best. Sure you can't compare two cpus solely by MHz but that doesn't mean MHz doesn't matter (as is implied by the myth).
Simplistically, you can derive cpu performance from two factors: the number of instructions it can
realistically execute every clock cycle (IPC) and the number of clock cycles the cpu can go through in one second (MHz). You can't remove either factor from the equation and there is absolutely no reason to.
Bottom Line: MHz matters, it just isn't everything.
On another note, I think alot of you people here are being a bit too condescending towards PC users. Sure there are
alot of pc users who are clueless about computers (just as there are mac fans who are equally clueless) but that doesn't mean that
everyone who uses a pc doesn't know anything about computers.
I mean just look at some of the more popular PC enthusiast sites on the web, can you honestly tell me the folks who post over at sites like Anandtech or Ars Technica are any less computer-literate than the people here? Hell I'd wager that they know a heck of alot more about computers than the typical macrumors member.
The vast majority of computer users use PCs, and thats not just the mindless masses, waiting to see the light, thats programmers, engineers, and a fairly large number of people who do know alot about computers. Both macs and pcs have their respective advantages and disadvantages, people just have to go their preferences. Personally I think that there are alot more people out there who would be happier with a mac than a pc (particularly in this day and age) but that doesn't mean those who do prefer pcs are clueless or ignorant.
In all seriousness lets all remember to respect the competition. PC makers didn't just get to where they are now from copying apple and doing better marketing. Those who ignore the products and innovation coming out from the other side do so at their own peril.