Accurate performance?

25 October 2015, 09:01

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? )

Toni Wilen · 25 October 2015, 14:22

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..

25 October 2015, 09:01	#1
epoxxy Posts: n/a	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? )

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25 October 2015, 14:22	#2
Toni Wilen WinUAE developer Join Date: Aug 2001 Location: Hämeenlinna/Finland Age: 49 Posts: 26,505	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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