VOTE: CPU for OTZ80 - eZ80 20 MHz or 50 MHz?

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Omnimaga: The Coders Of Tomorrow > Forum > Calculator Community > Major Community Projects > Discontinued Projects > OTcalc > [OTcalc] Z80-Hardware > VOTE: CPU for OTZ80 - eZ80 20 MHz or 50 MHz? > Message #54206

Poll

Question:

What CPU do you want to use in the OTZ80 calc?

eZ80 20 MHZ	8 (23.5%)
eZ80 50 MHZ	7 (20.6%)
eZ80 50 MHZ, underclockable to 20 MHZ	19 (55.9%)

Total Voters: 29

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	Author	Topic: VOTE: CPU for OTZ80 - eZ80 20 MHz or 50 MHz? - (Read 4207 times)
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calc84maniac

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Re: VOTE: CPU for OTZ80 - eZ80 20 MHz or 50 MHz?

« on: 07 August, 2010, 23:05:58 »

Quote from: DJ Omnimaga on 07 August, 2010, 23:03:49

Matthias1992, calm down, and Calc84maniac, isn't it more like 1.333x faster than the TI-84+SE? The TI-84+SE is 15 MHz.

Nope, because instructions on eZ80 take less clock cycles than on Z80. It's generally a 1 to 4 ratio. So eZ80 at 20MHz has around the performance of a Z80 at 80MHz.


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