I can't tell you exactly how much would you lose if you went with AMD Ryzen instead of Intel. For example, my CPU (12900KF) has a Passmark ST rating of 4,200. It can run everything at 100% when emulating Pentium II 350. The only slowdowns that occur are related to some newly introduced dynarec regre...

As far as PCem is concerned, Core i5-1135G7 would be a better choice.
Note that none of these two processors has particularly fast ST performance. Expect to run virtual machines up to Pentium MMX 200.

Pentium 3 support isn't implemented in PCem and will likely not be in the nearby future. Even if it was, it wouldn't allow 5800X3D to emulate Pentium 3 properly, given that its single core performance is in between 10900K and 11900 K.

Found the build: https://github.com/sarah-walker-pcem/pcem/commit/bc59a414b51bc20f27989e87e8044866afa76031 So I did a Release build with that optimization disable attribute removed, if possible can you check to see if this build has the same lag issues? https://repo.nasutek.com/repository/pcem/pcem...

For now, the workaround with experimental builds is to turn the internal CPU cache off in the virtual machine BIOS. Comes in handy for software Quake, old LucasArts SCUMM engine-based adventure games (with the exceptions of Full Throttle and The Dig), in particularly Monkey Island 1/2, Sam and Max, ...

Thank you for fixing it. I've just compiled my own build and tested some stuff. Unfortunately regressions are still present. Quake in software mode at 320x240 can drop down to 40% (it's at rock-solid 100% the whole time in v17 stable build). Is it possible to generate some sort of a log file or open...

Another interesting thing: builds that do not cause performance issues come without generated wxWidgets DLL files.

@unreal9010: Can you test and see if build 85e1ef3 is better in regards to speed https://github.com/sarah-walker-pcem/pcem/actions/runs/2056679721 This build now uses compiler flags more on par with v17's release. GitHub Action builds were built with optimizations, so it was odd the speed differenc...

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The only pieces of hardware in the host machine that PCem could access directly are the CD/DVD drives. Note that this might lead to severe performance degradations, so it's recommended not to use them. Instead, you should use image-mounting tools or even mount the image files directly with PCem, if ...

Ryzen 5600G has a Passmark ST rating of 3,189. Considering that people with 5600X (3,378) were having issues with maintaining constant 100% speed even when emulating Pentium II 233 (close to Diablo 2's minimum requirements), I doubt you'd get the desired results with this processor. Personally, I'd ...

It doesn't exist in the stable official release build which is available to download. It only exists in development builds and builds that you compile on your own using GitHub actions, be it with compiling instructions from spring 2021 or the more recent ones.

Some games run perfectly while others run below 100%. Yes, however, I am talking about specific cases that run at 100% speed with the stable build from 2020, but might regress down to 30% when using development builds from GitHub. That's a huge leap backwards. DevBuilds lack some profile optimizati...

Some games run perfectly while others run below 100%. Yes, however, I am talking about specific cases that run at 100% speed with the stable build from 2020, but might regress down to 30% when using development builds from GitHub. That's a huge leap backwards. I also noticed that Configuration Mana...

Update: Have just managed to compile the experimental version dated March 3 2021. Above regressions are present there too.

It seems that between December 1 2020 (the day when PCem v17 was officially released) and June 2021 some dynarec-related regressions were accidentally introduced in PCem. I've just done some testing with Pentium II 333 virtual machine running on Core i9 12900KF, using the latest available developmen...

CPU: Intel Core i9 12900KF CPU cooler: Dark Rock Pro 4 Mainboard: ASUS Prime Z690-A RAM: 32 GB Kingston Fury Beast DDR5 5200 Mhz GPU: ASUS TUF Gaming RTX 3060 12GB NVMe: Corsair MP600 Core 2TB OS: Windows 11 Pro Currently emulated configuration: CPU: Pentium II 333 Mhz RAM: 64 MB Mainboard: Gigabyte...

Here is an example how PCem runs with i7 10700KF processor. The particular CPU has a Passmark ST rating of 3,054.
https://www.youtube.com/watch?v=6FVgTlg8iNA

My CPU is AMD Ryzen 7 5700U with Radeon Graphics @ 1.80 GHz. I have a RAM of 16.0 GB and my OS is Windows 11. I have a laptop. That CPU should be able to emulate Pentium MMX 166-200, maybe even 233. Make sure it's plugged to the charger. That CPU shoud be at least 10% faster (in theory, though) tha...

Navigate to the Video section of the PCem's menu which is right below its status bar. Here you will see an entry called Render driver. Try different render drivers to see which one works best for you. Another thing to try: in your Windows Task Manager navigate to the Details tab. Look for the pcem ...

Go with Pentium 90 for the start. If the things are stable, slowly increase the speed of an emulated CPU.

Consult your manual.

Windows 98 is more demanding than Windows 95, though not significantly. As far as I know, Windows 11 does not require SMT.

Try a different combination of CPEs. For example CPE 0 and CPE 2. I do hope that none of the software you are trying to run with PCem is located on physical media (e.g. CDs).

Those who are unable to compile PCem or want to check its current state hassle-free can download development versions here: https://github.com/sarah-walker-pcem/pcem/actions/workflows/c-cpp.yml Just select the workflow run you want (preferably the latest one) and navigate to the Artifacts section wh...

Yes, some have graphics/sound issues (regardless of what hardware is used) or keep displaying the runtime error, divide error or work way too fast. Particularly difficult to work under Windows9x are Pinball Dreams/Fantasies. I don't recall anybody getting these to work under Windows 9x environment. ...

Most DOS games should work just fine under Windows 95/98, provided there is enough free conventional memory available and no obscure PCI sound card is involved. A UniVBE-compatible video card is highly recommended too.

Another reason for performance bottlenecks could be the use of real physical discs such as CDs and floppies. Always make virtual copies of these and then load them under PCem. There's free software available that allows you to make virtual images of CDs/floppies you want to use with PCem.

It's noteworthy that there is no general formula how different configurations will behave under PCem on a host computer. The best thing to do is to try different configurations and then go with the one that works best, making sure that selected virtual machine configuration is not too demanding for ...

I was talking about the virtual machine not the PCem performance. I didn't notice any particular difference when trying out emulation of different Socket 7 boards.