can get 2+MB/s off the standard IDE port with a blizzIV030 let alone an 060...
i'm not sure about the chipram access speed differences between the apollo and blizzard, all i know is that they both kick arse.
roughly roughly the 060 is about twice the power of an 040 at the same clock speed. and as the 060 starts off at an average of twice the clock of your bog standard 25Mhz 040, thats a 4x jump right there. as soon as you start using programs compiled and built for the 060, you can get another 2x jump on that. as the software is then able to use the multiple execution units and branch prediction unit. non-060 aware benching software (sysinfo) only shows an 060 at half power due to not being able to understand how to access its moist number crunching goodness.
so,
an 030 at 50Mhz = ~10Mips
an 040 at 25Mhz = ~19Mips
an 060 at 50Mhz = ~80Mips - sysinfo may show 39Mips due to only accessing one execution unit.
an 060 at 66Mhz = ~100Mips
enjoy your 060 powered amiga future. ;-)
vrrrrrooooooommmmm!!!! :-D