Dual 1.42 versus 1.42 Single (1.25 overclocked to 1.42) in the same machine (G4 MDD).

I have done several speed test -primary video compression- swapping two processors cards in my G4 MDD.

Firsts of all: nothing take benefits of the dual processor, excep some task in some applications designed for dual processors.

Some apps claimed to be dual aware, but I couldn't see or measure some improvement as Virtual PC 6 or Apple DVD player.

Toast Video CD -> 67% faster on Dual

Apple MPEG2 ->45% faster on Dual

3ivx -> 10% faster on Dual (1)

mp4 -> 8% faster on Dual

Cleaner 6 ->20% faster on Dual (2)

(1) In others test show 30% faster on Dual

(2) In others test show 0% faster on Dual

Qt Player 3ivx (divx/mp4 playback) 12-24% faster on Dual

Sound Jam MP -> 38% faster on Dual

Photoshop 5.5 is also a 15-20% faster on dual but I couldn't measure well.

Sorry for my Englis