I resolved i buy the OS4 from a guy who have a dead pegasos 2.
In all the cases i make some test and os4.1 is massacring mos
Test pegasos2 1gb ram, Radeon 9250 128bit 128mb ram
Amiga OS Quakegl 640x480 all hi setting 125fps
Mos Quakegl 640x480 all hi setting 75fps
Hope Mr Hans will be able to make RadeonHd for 3.xxx and 4.xxx agp version
Thanks again and good job to all AmigaOs Team!