| Available in Mhz | 
    | 10.00 | 
    | 16.00 | 
    | 20.00 | 
    | 28.00 | 
The MC68HC000 is almost identical to the MC68000 except that it is manufactured in HCMOS which amongst other reasons allows a higher clock frequency. The HC variant of the processors has never been used as the base processor in any Amiga models but has been used on a handful of accelerator cards.