There is a huge article on HardOCP that compares a ton of different hardware running Doom 3 in the highest playable mode. I've interpolated between the systems to derive expected result for the people in here that I know have ordered Doom 3. I threw in 3nder, and Rixlor even though they haven't yet ORDERED Doom 3. This isn't really the game to copy. (UT2004, Far Cry, BF, console games, and all that are games to copy.)
Basically the difference between the quality levels is what parts of the graphics are compressed. In High Quality mode, the specularity maps, are compressed. In Medium Quality mode, more things are compressed, and in Low Quality mode, everything is compressed and the textures are reduced to 512x512. Everyone here runs in Medium and High. So really, the game will look very similar on all of our systems. You can actually even play it on a GeForce 4 MX 440 in Low Quality mode, and it's fairly playable.
Anyway, the results:
J3RK
1600x1200 - Avg 57.5 FPS - HQ
Choki / McNevin / 3nder
1024x768 - Avg 47.3 FPS - HQ
Rixler
800x600 - Avg 47.9 - MQ
Seth
12x10 - Avg 51.6 - HQ
Doom 3 Detail/Performance/Hardware
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spidermonkey
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Yes, I think it should work pretty well on your systems. The three of you have teatering systems 
You have dual channels of fast memory. Choki has dual channels of slower memory. 3nder has single channel of middle memory. Choki has the fastest bus speed, 3nder has the highest clock rate, you have efficient floating point. Etc. Etc. Etc.
Another thing to note, is that when you turn on high quality, it enables 8X anisotropic filtering. If you were to say decrease that to 4X or even 2X, you'd gain some performance and still have less compression from the high-quality setting. I think I'm going to turn mine down to 4X, and keep my frame rate locked at 60.
The game is capped at 60 FPS during play, so you can't go over that anyway.
You have dual channels of fast memory. Choki has dual channels of slower memory. 3nder has single channel of middle memory. Choki has the fastest bus speed, 3nder has the highest clock rate, you have efficient floating point. Etc. Etc. Etc. Another thing to note, is that when you turn on high quality, it enables 8X anisotropic filtering. If you were to say decrease that to 4X or even 2X, you'd gain some performance and still have less compression from the high-quality setting. I think I'm going to turn mine down to 4X, and keep my frame rate locked at 60.
The game is capped at 60 FPS during play, so you can't go over that anyway.
How many Doom 3 threads are there? I may buy it, although unlikely. I'm not preordering it because I won't even be in the country when it comes out. I think it is silly to classify some games as OK to pirate and some as not.No, it isn't silly. Some games are not up to my standards. Some games are. I actually buy all the games that I play frequently, as I'm sure you've observed. The ones that I might play for a day or two and then delete, are the ones that I download. I also download abandonware, impossible to find old games, or expansions (Like the Quake Dissolution of Eternity expansion, which if for sale NOWHERE.) I also download arcade and console games that I don't have the hardware to play on, or I DID own it at one time, but don't want to have it all hooked up to a TV. I think that's sensible piracy. Makes perfect sense to me.
Makes perfect sense to me.Well, I actually bought all of those, but they aren't games that I'd complain about someone else copying. I will complain until the cows either come home, or spontaneously combust if people copy Doom 3. Nobody in this industry makes games of the quality that id does, except maybe Raven. That kind of effort, polish, and innovation should be rewarded with sales. I'm not saying the other companies didn't put the effort in, (not everyone can code like Carmack and Co.) but those games are nowhere near the level of splendor of an id game. There are still active communities going all the way back to Doom 1. That says something. I like UT2004 a lot, but it's not even as cool to me as Quake 3. Q3A has a certain atmospere, and a certain alien technology meets castles and demons type of thing going on that is fairly unique among games. The play balancing is perfect. No modern shooters come anywhere near the polish of Q3A.
but they aren't games that I'd complain about someone else copying. I will complain until the cows either come home, or spontaneously combust if people copy Doom 3. Nobody in this industry makes games of the quality that id does, except maybe Raven. That kind of effort, polish, and innovation should be rewarded with sales. I'm not saying the other companies didn't put the effort in, (not everyone can code like Carmack and Co.) but those games are nowhere near the level of splendor of an id game. There are still active communities going all the way back to Doom 1. That says something. I like UT2004 a lot, but it's not even as cool to me as Quake 3. Q3A has a certain atmospere, and a certain alien technology meets castles and demons type of thing going on that is fairly unique among games. The play balancing is perfect. No modern shooters come anywhere near the polish of Q3A.