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Author Topic: Stuttering / Slow Downs / Games that are not playable on A600GS  (Read 20147 times)

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Offline outrun1978

Hi All,

I've recently picked up an A600GS this past weekend and one of the disappointing things was finding slowdowns in some of my WHD installed games that I've put on the Amibench installation. For example games like Bubble Bobble, Edd the Duck, its almost like there is a slowdown before it catches up, so similar to issue that others have reported. 

If its an issue with Amiberry I guess we have to wait until the next update.  :( For those who have noticed this issue, does this occur if you install a separate 3.1 installation.

Amigaone X5000 4GB with Radeon HD 7750 and Amiga OS 4.1 FE Pre-Release

Amigaone 500 2GB with Radeon 5450 and Amiga OS 4.1 FE update 1

Amiga 1200 with ACA 1231/42 accelerator and Amiga OS3.9

Amiga CD32

Check out my blog at http://www.amigax5000.blog
 

Offline outrun1978

Re: Stuttering / Slow Downs / Games that are not playable on A600GS
« Reply #1 on: May 28, 2025, 09:23:44 PM »
Ok, so I had a good opportunity today to really play around with the machine A600GS.  I even managed to do a 3.9  set up thanks to iowtheme's useful video tutorials on Youtube on how to set up a workbench on a 1200NG.

I tested out a few games too both as ADF files and also as WHDload installs within 3.9 and I found the following games would stutter during gameplay:

Pang  (on Title screen and on interval screens)
R-Type 2  (runs at a really slow framerate  in general)
St Dragon  (starts ok but gets slow in places)
Chaos Engine (similar to Pang, slowdown in the music on title and character selection screen) but once in game you are fine.
Space Harrier was a little sluggish too.

The same thing happens on Amibench too despite putting these  in the programs folder as suggested.

The JIT emulation setting can either make the game better or worse depending on the game from the above tests.

It kind of reminded me of an issue I used to have when I owned a Sam 460, but luckily that version of E-UAE had a frameskip that you could then tailor to each game. 

I honestly think some form of frame skipping setting and greater customisation of the emulation package  within the menus would be welcome. I am saying this constructively because I actually think the A600GS is a good product and want it to succeed.

In general I was more impressed with my purchase after getting OS3.9 set up.  I have even ordered the latest OS 3.2 to set up when it arrives.



Amigaone X5000 4GB with Radeon HD 7750 and Amiga OS 4.1 FE Pre-Release

Amigaone 500 2GB with Radeon 5450 and Amiga OS 4.1 FE update 1

Amiga 1200 with ACA 1231/42 accelerator and Amiga OS3.9

Amiga CD32

Check out my blog at http://www.amigax5000.blog
 

Offline outrun1978

Re: Stuttering / Slow Downs / Games that are not playable on A600GS
« Reply #2 on: May 29, 2025, 01:07:06 PM »
@AmigaOldskooler

Thanks for that really useful post and advice.

I am pleased to say your suggestion to downgrade the machine to a more stock based set up  appears to have worked in resolving some of the slowdown issues.

I retested this using an A1200 68030 set up 14mhz 2mb chip and 8mb fast ram

St Dragon now doesn't stutter.

Neither does Pang

Both were tested with JIT on.

So yes the maximum speed setting and 68040 processor may cause problems with the emulation.

Thanks again


Amigaone X5000 4GB with Radeon HD 7750 and Amiga OS 4.1 FE Pre-Release

Amigaone 500 2GB with Radeon 5450 and Amiga OS 4.1 FE update 1

Amiga 1200 with ACA 1231/42 accelerator and Amiga OS3.9

Amiga CD32

Check out my blog at http://www.amigax5000.blog