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Old 25 October 2015, 09:01   #1
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Accurate performance?

I'm trying out 4D Sports Racing.

Having WINUAE at "Best compability" I will recieve following:

- A500 Stock - about 1-2 fps during DSI-logo
- A1200 Stock - about 2-10 fps during DSI-logo
- A1200 (Blizzard 1240) - almost fluent

Having WINUAE at "Low compability" I will recieve following:

- A500 Stock - 2-10 fps during DSI-logo
- A1200 Stock - fluent in all the game!
- A1200 (Blizzard 1240) - did not even bother to try.

My host CPU ( none of the cores ) never breakes a sweat.

Therefore a few questions from this:

- Is the "Best compability" the most accurate emulation-experience?
- Is 4D Sports Drive so incredible heavy so even a 1240 is having a problem? ( bad port from PC? )
Old 25 October 2015, 14:22   #2
Toni Wilen
WinUAE developer
Join Date: Aug 2001
Location: Hämeenlinna/Finland
Age: 45
Posts: 23,905
A500-like config is the only one that is fully accurate in most compatible mode.

All 68020+ configs are not that accurate because emulating 68020 CPU cycle usage accurately is very difficult, it is not documented, lots of work to do..
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