Are there differences in computing speed for the different versions and platforms?
Yes, there are. Apart from the CPU speed which obviously determines the calculation speed also the compilers behave differently. For Windows we have these performance figures for different CPU’s (Thanks to Walter Selg for these figures): Pentium III 800 MHz / PC133 SDRAM — Processing time for 1 work unit: ~ 4:00 h Athlon 700 MHz / PC133 SDRAM — Processing time for 1 work unit: ~ 6:30 h The interesting part here is that ZetaGrid is slower on an AMD Athlon than on Intel Pentiums. Our guess for a reason is the optimizing Intel compiler which was used to compile the calculation code for the Windows platform.
