I finnaly got the Doom III alpha working, and I ran a benchmark. Check this out:
Heh, the first map had no AI at all. I just ran around and shot heads.
The second map ran best for me, and the first part of it (a cyborg demo breaking through a bunch of pipes and lunging at me) was just plain creepy.
The third map was the most detailed, but it crashed me.
Heh, remember how easy those Imps were in the first two dooms? Not anymore. These babies run at you and swing like no other.
*edit*
To get that many FPS, i had to change seta r_varmegs "92" to seta r_varmegs "128", which made it use half of my memory, but ran pretty good. Im going to pick up another stick of 256 mb PC800 and set it to "256".