#: 5485 S15/Hot Topics
    23-Jul-90  15:42:45
Sb: #5481-CoCo/OSK Basic(09)
Fm: Kevin Pease 70516,1633
To: Ed Gresick 76576,3312 (X)

 Ed The version of Basic that Mike is using is pretty old. Also the MM/1 will
have the same speed as the TC70 in the MM/1 minimum configuration. The memory
on the minimum MM/1 is shared with the video display and is much slower than if
it were private. The memory is accesed every 533 ns instead of being accesed
every 266 ns if there were no wait states. When the MM/1 is upgraded with the
I/O board the speeds will improve significantly. I ran the drystone benchmark
on my old PT68k and got around 950 drystones /second with a 12.5 MHz clock. The
MM/1 with fast memory on the I/O board gets around 950 drystones -

The MM/1 like make has will get around 600 drystones/second. The 68070
processor is definitly slower then the 68000. A 68070 at 15 MHz is the same
general speed as a 68000 at 12.5 MHz. The TC70 should show verry close to the
same speed. although I don't know much about memory speed on that board.


        Kevin Pease
        70516,1633