Zebra 3 and Zebra Legacy – Page 61 – u-he Forum

Nothing, on today’s machines. The number of machines that Zebra 1.0 ran on was comparably small, there were just so and so many Macs, and back then with PowerPC G3/4/5 processors. I remember that an oscillator took up roughly 1% CPU on my machine from 1999. That was pretty good. Synths with a lesser sound (aliasing…) used more.

Today, on a 4 years old machine a Hive oscillator takes up something like 0.3% CPU at 16 x unison. Hive’s oscillator has evolved from those in Zebra 1.0. Back then it would have been CPU hog, probably using 10% or more (per oscillator, per voice!).