Re: What's the IIe's--Arghh!--MHz Speed?

[a1a51640@bc.sympatico.ca]

On Mon, 18 Jan 1999 14:06:33 GMT, pg@sff.net (Paul Guertin)
wrote:

>On 17 Jan 1999 18:54:02 GMT, supertimer@aol.com (Supertimer) wrote:
>
>> Compare a 65C02 to a Z80 or an 8088/8086, for example, and you
>> notice that for some instructions, the 65C02 can execute in as little
>> as a single CPU cycle whereas the Z80 or 8088/8086 takes 4 or
>> more. 
>
>Every instruction (even NOP) takes a minimum of two cycles on a 6502.
>
>> Thus, realistically, that 1Mhz IIe runs as fast as the original
>> 4.77Mhz IBM PC.
>
>In my experience, in real-world situations, a 6502 will be about 
>twice as fast as a Z80 with the same clock speed, not four times 
>as fast.
> 
>Paul Guertin
>pg@sff.net

Agreed, but the Apple //e was competing with Z80B chips (6Mhz).
It was 16 bits killed both -- and the MicroSoft/IBM juggernaut..