[antiRepublicrat]

And it still won't come close to an overclocked P4.

It depends on the application. Games depend a lot on SIMD instructions and floating point math. These are areas that the PPC970 absolutely excels at, easily enough to be worth double the clock speed compared to a P4, especially since the P4 is hindered by a dearth of registers (as noted by the Unreal Tournament programmers). I'll grant the absolute speed crown if you want to talk integer performance or switch your reference chip to an AMD Opteron, but Intel is lacking.

[Dysfunctional]

The problem with Unreal Tournament is Direct X; but open gl suffers no such problems.

Half-Life 2 is direct x and is cleaner still; but Carmack's Doom 3 engine may be the best game engine todate... and guess what, because of the inability to optimize the efficient and high quality lighting effects of the new Carmack engine to the coding for MAC, there will be no MAC Doom 3 version.

Pay more and stick to email for the MAC.