No, as long as it is the barton core 333MHz or 400MHz Throurghbred core, it will function just fine on that motherboard.
Also, root, it has nothing to do with the processes per clock. It is the pipelines. Pentium4 processors use a 20 CPU Pipeline interface whereas the AMD Processors use 8 CPU Pipelines per wafer. This is why AMD is vastly superior to Intel.
Good idea though, but actually, they process 16 bits per crest and trough, making 32bits. The new 64bits enable 32bits per crest and trough of each hertz function wave, which is how the processors do 64bit memory extensions, AKA Athlon64s and EM64.