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C64 compared to the Plus 4?
| Re: C64 compared to the Plus 4? [message #4935 is a reply to message #1899] |
Sun, 29 April 2012 08:03   |
Christian Brandt
Messages: 97
Registered: April 2012
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From Newsgroup: comp.sys.cbm
Am 25.04.2012 15:09, schrieb MagerValp:
> It's about 12% slower while graphics is displayed, but 78% faster when it's not (in the borders). I don't have the details here, but iirc it works out to a PAL Plus/4 having about 40% more CPU cycles than a C64.
The C64 CPU also does waitstates while the VIC reads graphic data from
memory. I remember you lose up to 66% of all memory cycles upon every
eigth line displaying data.
All in all the 265/Plus4 is a lot faster than the C64 and sometimes
even faster than a C128 running at 2Mhz (I think this may come from the
slow MMU-Handling of the C128).
Christian Brandt
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