Hi Josef,
If you take speed doubling then Revelation II Portorose is a factor of 2.58 times faster than a Portorose 68020 with 12 MHz. That would make the Revelation Portorose be the equivalent of a 68020 with 75.84 MHz in a simulation. <---- (for Steve
SIMULATOR!! j/k)
I use this factor because it helps to understand the ELO improvement effect for the speed doubling. Unfortunately Schachcomputer.Info does not show a rating for the Revelation II Portorose so it is hard to be exact. But if you take Revelation II Lyon and compare it to 68020 Lyon and assume the results would be similar, then you have an ELO difference of 180 ELO. Divide that by 2.58 Factor and you have a speed doubling improvement of 69.77 ELO.
So for example
68020 12 MHz Portorose = 2146 ELO
Revelation II Portorose is probably around ELO 2326 - Assuming it performs the same as Lyon with its increased speed.
I thought I would mention this because when people read 6 times faster then often people assume between 50-70 Elo improvement per x times. And that would have people maybe assume that it could be 300 to 420 ELO better than the 68,020 making it an ELO of between 2446 to 2576
ps...also please don't forget that the Revelation's base programs are 68,000 ROMS.
Best regards