Originally Posted by 1994SilverGT
just so u know, in some games it is actually useful to have higher than 60 fps.
for example the quake three engine operates best at 125 fps. whether it is visually better or not i dont know, but it does allow for thing su cant do with lower fps.
I'm sorry that you believe that nonsense. Most games will benchmark higher than they actually run. Meaning that most games you can benchmark them at 125fps (which is an odd enough number as it is), but while you're actually playing the game, it's capped at 60fps. Games that allow you to play at higher fps than 60, often run into the problem of playing the game in fast forward. It then becomes too fast for your hand/eye coordination and reaction time.
The point of benchmarking is to say "look! this card's so good, it can go this fast!", it's not to be mistaken with the performance you'll get while actually playing. It's also used as a means to determine if you'll be able to play the game at it's highest graphical settings, without any significant slowdown.
And if you do a little research, you'll see that Doom 3's engine is actually capped at 60fps, just like most other games on the market. Even if you alter it to force it to go higher, all it does is double frames as necissary to compensate for the higher fps, to keep from running into the "fast forward" effect. So even if you're actually playing at 120 fps as you claim, all it's doing is doubling each frame... effectively running at 60fps.
John Carmack of id sofware: "The game tic simulation, including player movement, runs at 60hz, so if it rendered any faster, it would just be rendering identical frames. A fixed tic rate removes issues like Quake 3 had, where some jumps could only be made at certain framerates. In Doom, the same player inputs will produce the same motions, no matter what the framerate is."
Games are coded to run at 60fps, because it synchs up with the 60Hz standard. Games that run at 30fps (which is the point at which the Human eye percieves fluid motion) double each frame to synch up to the standard 60Hz.
You've basically been duped by the hype gods.
Edit: I misread your post as Doom 3, instead of Quake 3. Yes, the Quake 3 engine will allow you to run higher than 60fps, which produces a fast forward effect. Certainly not something you'd want from regular play, as everything is moving twice (or more) as fast as it should be. It would certainly give gamers who can accomodate this a distinct advantage over those that can't, because those that can't will essentially appear to be moving in slow motion, running at 60fps while those that can are running at 120+fps. That's one of the main reasons most games are hard coded to 60fps... to eliminate these type of hacks, especially in multiplayer.