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In your DOOM 3 directory, find "DoomConfig.cfg" (x:\Program Files\Doom 3\base). Open DoomConfig.cfg in Notepad.

 

Find the line:

 

seta image_cacheMegs "32"

 

I changed 32 to 96.

 

I got a nice boost in performance. I dunno if the tweak worked or not (maybe my machine did something wierd, have no clue), so I'm just seeing if this works for others as well, or if a different setting works better than others.

 

If you have 1gig of ram or more I would suggest setting it to 512. (Gonna try it tonight) :peace:

 

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Guest zerodamage
Guest zerodamage
Guest zerodamage
Guests
(edited)

Guys, in the cfg file mentioned above, you can change the Anti-scopic filtering setting to 4 and not notice a difference at all in Image Quality but notice a decent performance boost. So try it in High Quality and then go in and change that.

 

There is a tweak guide somewhere for this game, let me find it.

 

By the way, I am playing at 1024 x 768 High Quality settings without a hitch. My X800 pro having the full 16 pipes helps a lot. I also noticed though that my GPU temp doesn't move much at all. This game doesn't push the Pixel shading power of these cards. I think it is mostly Memory bandwidth and Fillrate.

Edited by zerodamage
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Guest zerodamage
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Guests

As per above, here is the file location and file name.

 

I pulled this from Driverheaven.net

 

 

In your DOOM 3 directory, find "DoomConfig.cfg" (x:\Program Files\Doom 3\base). Open DoomConfig.cfg in Notepad. Find the line: "seta image_cacheMegs XX". Where XX is, try increasing this value in according to how much ram you have. I have 1 GB of ram, so I set it to 256, HUGE boost in framerate, game runs a lot smoother now. Try these values: 32, 96, 128, 256.

 

I got about a 22FPS boost in SP... Try it out

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Guest zerodamage
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Guests
To enable the console create a shortcut that appends +seta com_allowConsole "1" to Doom3 or press CTRL ALT ~

 

Doom3.exe +seta com_allowConsole "1"

 

Access the console using the ~ key (below ESC).

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nVIdia 5600ultra AMD 2200+

image_cachemegs 32

 

20fps with 2xAA in Medium Quality 640x480

 

10fps with No AA in High Quality at 800x600

 

image_cachemegs 512

 

22.6fps with 2xAA in Medium Quality 640x480

 

14.6fps with No AA in High Quality at 800x600

 

Ehh it's not a big boost but I does look better.

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