Found this tweak guide through tomshardware
Kick ass guide. Much better than the config tweak IMO.
EDIT: If you are unsure about installing the beta 4.9 drivers, just download the Atioglxx.dll in the link and plop it in your doom3 folder.
I would die without GF
29th November 2003
This belongs in the Modding/Editing forum.
My mistake Majic :)
I used another mod that was in the Doom 3 performance heading. Would changing a mod in this game affect my systems' performance as a whole in other games?
I can't run unreal 2004 anymore, and that really bothers me. Its not going to the internet screen properly.
To be honest with all I did no tweeks and get a 67.8 FPS on high detail and on ultra I got 51.2 FPS so why is everyone having a problem running this game? What Drivers are you all using?
I take what n0e says way too seriously
9th April 2005
Ive got myself a Intel 3.0 ghz , with 512 ram , and a Radeon 9600 xt. Ive noticed from all my tweaking that Doom 3 just plain doesnt give ATI users a break. The guy above ^ seems to have no trouble ... i wish i knew his secret. If i invest in a 9800 pro like he's got am i gonna see a noticable difference? Ive been trying to track down a X800 xt Platinum Edition , friggin hard to get ahold of. but after doing many many tweaks (changing the config file to alter cache size , and decompressing the .pk4 files) i still can barely run the game on high mode. its sad really. anyone who's said that these tweaks work have used NVidia cards ... I can understand that NVidia has some advantages ... but i dont want to bust money on a new power supply to get a 6800 ultra. so if their are any suggestions i would be happy.
A big help is Virtual Memory, it needs a lot, with a large hard drive you should reserve 10gig of it. This can be done by using Partition Magic. If you need more instructions on how to do this I would be glad to to help. My brother is the software Geek and Im just the Hardware Nerd so I would have to get the info from him. But once I get it I can offer it to anyone who needs it.
BozmanbeyondTo be honest with all I did no tweeks and get a 67.8 FPS on high detail
AFAIK the tic won't let you get anymore than 60 FPS... how could possibly you get more than it.
Yeah man i hate that. You cant get more then 60 FPS. Doom 3 has locked that rate. So everyone saying that they are getting more then 60 FPS means they havnt got the game or cannot read there FPS Meter.
Just so you all know it is possible to remove the 60 fps limiter in singleplayer mode only to do this access the console and type com_fixedtic -1 enjoy!