So then I proceeded to install win98 on my CF card, install the drivers, directx, etc ...
And then I made couple of benchmarks:
First of all 3dmark99 in 640x480x16bpp
The attachment 3dmark99_640x480.png is no longer available
Then 3dmark99 in 800x600x16bpp
The attachment 3dmark99_800x600.png is no longer available
Then I tried a game of UT99 in 400x300x16bpp in low details on the first map
The attachment ut99_400x300_hard.png is no longer available
After the game I had ~24FPS on average, not bad !
Just to compare, I checked again in software rendering mode (same res, same settings) and here's how it looked like
The attachment ut99_400x300_soft.png is no longer available
After the game I had ~11FPS on average. So the RageXL definitely accelerates the rendering, even if it's not a rocket, it's turning something totally unplayable into something """acceptable""". Also it looks a LOT better in hardware mode (the two screenshots don't quite make justice for the hardware rendered mode, but just look at the way the weapon looks, the software rendered mode looks blocky and even has some "green dots" that shouldn't be there, whereas the hardware rendered one looks "okay")
Now this specific card and my setup have some drawbacks that may impact severely the performance of the tests:
- I'm using USB HID because DMP placed the second ethernet jack in place of the PS/2 connector. I'll probably remove it and replace it with a proper PS/2 connector if I want to make this mod "definitive"
- This specific Rage XL card uses only one chip of 32 bit SDRAM, but the chip is actually capable of 64bit SGRAM (or 64bit SDRAM). I'm not exactly sure how much exactly this impacts the performance, but yeah I'm pretty sure as potato as it is, even this chip is starving for bandwidth !
- I didn't have sound installed
Also fun fact, despite not having a VBIOS anymore, the original volari graphic chip is still detected by windows 98, so technically I can also do a dual monitor setup 🤣 (I might desolder it entirely and remove the original VGA connector to replace it with a connector that goes to the rage card). For those who want to attempt this mod and aren't familiar with soldering, you can also just remove one of the two serial ports if you don't need two of them.
Now that doesn't fix the issue with the sound chip, but hey now 50% of the problems this machine has are fixed 😁