Dariusz,
I have attached Sysbench results - it seems not much of my hardware was recognized so I edited some of the descriptions in the results.
My 2 top priorities for a machine are a big screen and a good keyboard.
For graphics I am running a Radeon X600 because SNAP supports the chipset and therefore I can run dual monitors - as shown in the attached picture desktop_2.jpg Which gets me a big screen for a very reasonable amount of money. 27" 1920x1080 LCD monitors run about $100 each nowdays.
For keyboards I used a IBM model M for years because they typed so nicely. I fact my daily driver until 2 weeks ago was a Model M made in 1993, and I bought a number of them to take to client sites. My new keyboard shown in the picture is essentially a Model M restomod. It is made with entirely new Model F internals, in a steel case designed to look like the Model M. It types even better than the original Model M. If you have ever typed on an old Model F keyboard you know what I am talking about. It is put out by Model F Labs.
This combination has a great feel - both screen and input wise. But installing an older card like the X600, or the X850, can be a challenge on a new machine, because of hardware issues and the installer for AOS 5.1
The issues:
1) AOS 5.1 installer will not run unless the graphics card/chipset supports GOP (graphics output protocol), which apparently came along with UEFI. The Radeon X600, and probably the X850 do not support GOP and therefor the AOS installer will not run with those cards. I may be stating this incorrectly but that essentially is the issue.
2) I could not find a single Ryzen 5 processor (when I purchased) that had an on-board graphics processor and supported a PICe gen 4 sockets. Apparently the chips had a limited number of gen 4 lanes and dedicated them to the on-board graphics chip. I wanted at least one gen 4 socket so I could get a faster NVMe SSD. I might have been able to get a Ryzen 7 that had the graphics processor and at least one gen4 NVMe socket but those generate more heat and didn't come with a cooler so you pay more intial costs and operating costs for probably not much if any performance gain.
3) I purchased a graphics card that would support GOP so the AOS installer would run, then took the card out and replaced with the Radeon X600 to get SNAP support and dual monitors. The cheapest I could find was a Radoen HD 5450 put out by VisonTek that cost about $70.
4) This means I needed a maintenance partition on a hard drive because I would not be able to boot from the install USB stick when problems arose unless I switched video cards .
5) I chose to format the drives as MBR to avoid the performance penalty that comes with the GPT driver - David A. talks about this at the 2023 Warpstock in Tempe Az. during one of his presentations. I had someone suggest that GPT allows you to customize block sizes on the drive and avoid some additional wear that happens on SSDs but I decided I cared more about the performance than the wear rate, and I wasn't smart enough to figure out how to do that anyway.
6) There is only one boot manager type application/utility that (potentially) allows you start in UEFI mode then then allows you to boot to Legacy or CSM. mode. That utility is reFind. But even though others could get that to work I could not. But the documentation on the reFind site describing how machines decide to boot into either UEFI or Legacy and the problems with this is excellent.
7) The Radeon will boot in pure UEFI mode but the screen does strange things for about 15 seconds before starting the desktop normally. However if you boot that way Win-OS/2 doesn't work.
This means you have to boot in Legacy or CSM mode which means AirBoot is your boot manager. AirBoot has an issue, at least with my Ryzen machine, where it will lock up if you use a USB keyboard to make any selections in AirBoot. I have a very small PS/2 type keyboard plugged into the PS/2 port of the motherboard just for navigating AirBoot. Once you get past AirBoot, and before you get to AirBoot, USB keyboards work just fine. It is only in AirBoot that the problem exists. Well - if you have an error when booting and you are using a USB keyboard you cannot Hit Enter to Continue. The PS/2 keyboard also works in those situations.
9) Finally - I have speed issues with RealTek network chips when using Netbios. These issues do not show up when using TCP/IP. Since my file server/NAS is WSeB it makes sense for me to be using Netbios on the OS/2 machines. This meant installing an older PCI Intel NIC card so that I could use Intel drivers and get decent network speed. Which meant getting an PCI to PCIe adapter. The first one I tried did not work. The second one made by StarTech did. It is listed on the OS2WORLD wiki under the Hardware - SCSI section.
I was forced to upgrade my old AMD machine when the ASUS motherboard stopped working. The transition to a new machine was very painful and took weeks, but I am very happy with the end results. It feels very good, and my graphics performance, while not as good in Sysbench as yours is, feels very good to me. For example I can drag application screens across the desktop with no noticeable delay.
I do have some issues with some Win-OS/2 applications but I think started having those issues when I upgraded AOS versions on my older AMD FX4350/ASUS machine and didn't realize what the cause was at the time.
BTW - I have an old Radeon X800 in the basement and might drag it out to see what it does for the graphics benchmarks. I switched to the X600 because the X800 took up two slots, had a loud fan, and was a power piggy. This new machine is essentially silent - I have to get my head right next the fans in the case to hear anything at all. It is uses about 60 watts at the desktop at idle (without a screen saver) 90 watts when the screen saver kicks in. At boot-up it hits about 120 watts briefly.
Hope this helps.