[quote] FPS that high are ridiculous. The human eye can't even tell the difference.
<sigh> Some people just don't get it.
The human eye can detect differences up to around 70 fps or so. That's why you can tell the difference between a monitor with a 60 Hz refresh, and one with 85 Hz refresh. One gives a headache, the other doesn't, because it's faster than the human eye can detect.
Now, about FPS, those FPS measurements are averages. Depending on the amount of action on screen, the FPS may be much higher, or much lower. Unfortunatly, when the action is greatest is when a gamer needs the display to be smoothest, so they can aim, shoot, and run accurately. But this is when the fps drop to the lowest amount.
For example, on my PMG4, OS X quake 3 v1.31b3 gives me about 62 fps average, using demo4. But demo4 is not a very challenging demo, because there aren't many wide open spaces. So on some maps, even with NO action at all, the average frame rate drops to around 25-35, at which point the game becomes unplayable, because with action the rate drops to 10 fps or even lower.
But even on a map similar to demo4, where the average fps is still around 60, there are times when so much action is taking place that the fps drop to around 20. This drop gives gameplay a "choppy" feel, and player control becomes difficult.
I can change the game settings to get greater fps at the expense of less beautiful graphics, and almost every map is playable.
Hopefully I've illustrated the need for gaming computers to get insane average framerates, up around 300 fps, one could have all the eye candy on, and even with lots of action, gameplay would be silky smooth.
Of course, the other reason to have such high framerates would be that the computer would last longer. If you can get 300 fps average in Quake 3, then in Doom 3, you'll probably still get good performance. However, I think most people who buy such intense gaming rigs are the sort that don't keep the same hardware for more than a year at most...there is phallic element to all of that fps stuff as well.
Anyways, 60 fps average is fine for me, but I only play Quake occasionally. For someone who played it every day, they would need more power.
So Apple needs to get their butts in gear so they don't loose more sales to people who want to be able to play games. Apple will never get the hardcore gamers without a revolution, but they should at least make sure that they keep the Mac users who use their computers for work but also like to play games sometimes (the "casual" gamers).