IJ Reilly said:
Yes, a much, much slower machine with far less RAM running the same OS. These kinds of things get compared all the time, other variables be damned, and I think it's not unreasonable to expect that a machine with probably five times as much horsepower and twice the quantity of RAM would at least equal the performance of a four year old, far slower Mac under normal circumstances, and even a lot of abnormal ones.
It's a machine that REQUIRES far less ram.
Horsepower and speed don't matter if the machine is starved for ram and is swapping data from the hard drive constantly. When you exceed the ram in a machine, it will slow to a crawl. This is true of any machine, even a G5 quad will do it if the things you have open exceed the ram.
The intel machines just require much more ram and as a result reach that ram saturation point far easier than any of the PPC machines do. Horsepower has nothing to do with the equation. A faster processor isn't going to speed up the transfer of swap data to and from a relatively slow hard drive.
I'm not sure why you're having such a tough time understanding this.
Maybe you shouldn't worry so much about what's "unreasonable to expect" and focus more on what IS. So you feel that requiring more than 512 megs of ram to run well isn't reasonable. That's your opinion. But it's not a reason for you to be in denial about the fact that more ram is needed.
There are macs from years ago that ran fine on FOUR megs of ram. Would you expect a new mac to be able to do that, just because newer processors are vastly more powerful?