Couldn't graphics card also affect it? As I have highspeed/cable internet, COD:UO still lags.
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The lag could also be memory leakage after cycling through several maps. Ging to 1 gig will do wonders for your PC.
You guys are making the (very common) mistake of confusing lag with low framerate.
Lag, aka latency or "ping", is the time delay for information to move from the server to your computer. You're dealing with this all the time on the internet, it's just not noticeable. It's in games where you have a constant flow of data, and need to constantly update the position of players, objects, and various other things that this delay can become noticeable, if the delay is long enough. If it becomes extremely high, like 300-400ms or more (if you have a good cable or DSL connection, you are probably getting <100ms the majority of the time) it can appear to be somewhat like a framerate issue. Players will sometimes appear to pause, then suddenly jump ahead (known as warping), it can seem like you're running behind everyone else in the game (and you are, in a way)...
The classic excuse for getting killed in a FPS is "But he had a lower ping...."
And, the best way to get called a cheater in any FPS is to achieve good scores with a high ping (been there, done that, got the t-shirt.... several times
)
The main control you have over your ping is in chosing a server. Generally, the the closer the server is to your location, the better the ping will be. This is why essentially every online game shows the ping times in the server list when you are looking for a game. Of course, if you have a good connection and are getting very bad latency, there may be an issue with your connection, modem, or something else.
Framerate issues, OTOH, all originate in your PC. Whether it's from having game settings turned up to high for your hardware, having to many programs running in the background, having a virus or spyware, or whatever.
Anyway....
I should get paid for writing books as long as my posts end up