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Why FPS Matters

post #1 of 36
Thread Starter 
I posted this in another thread as a response to a debate regarding Lucid Virtu, but I wanted to make a thread here with the same information as I see this debated constantly.

There is a lot of argument about whether or not being able to render a higher fps than your monitor can display is useful. Well it absolutely is and here's why:

Suppose you are getting 60 fps with a 60 fps monitor. Furthermore, in this ideal world, suppose that your graphics card is done with a frame exactly at the right time for it to be displayed. As soon as it is done with one frame, it starts another. This means that the frame displayed uses position data collected right after the last frame finished, in essence, the image displayed in any one frame is (1000/60) = 16.7ms old. Assuming your monitor has a decent response time, this is a waste, even though you're getting frames every 1/60th of a second like clockwork, there is a fair amount of latency introduced.

Now assume the same situation as above, still with a 60 hz monitor, but assume your gpu is rendering at 120 fps. All of a sudden frames update twice in between monitor refreshes. In essence, every other frame is finished and never displayed in the middle of a refresh cycle. This means that every frame displayed is now only roughly 8.5ms old, a much lower latency that you will absolutely notice, even though your monitor is still only displaying 60fps. The higher fps produced by your gpu might not make movement more fluid, but it will make the game feel more responsive. As a side note, this is why fps players insist on getting fps in the hundreds, it has nothing to do about fluidity of movement (well that's important, but you don't need 200 fps for it), it's about having virtually no response lag.

Anyway, I hope this cleared stuff up. I wasn't sure quite which forum to put this in, but I figured graphics cards general was as good a place as any since fps goals are an important part of choosing your graphics card.
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post #2 of 36
Never seen a screen measured in FPS. All the screens Iv seen have been measured in HZ and Response time.
HZ and FPS cant be measured together since you can display 100+FPS at 60hz just means you wont be seeing every single frame change but you will have more up to date frames then if you were only getting 60fps.

But spot on with the response lag bit.
FPS is a measurement of how up to date a environment is ideally you want this to be as high as you can get it.
HZ on the other hand is how often your screen is changing its image.

But each to there own.
Iv seen lots of people always go on about how all you need is 30fps because thats all the human eye can see. Personally I cant stand anything below 100fps unless its in 3D. It just doesnt have the same feel to it, Even on a 60hz screen.
post #3 of 36
i'm happy with 40 fps minimum
should i pay 5 times more for it to go higher -no
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post #4 of 36
Quote:
Originally Posted by Deathclaw View Post

i'm happy with 40 fps minimum
should i pay 5 times more for it to go higher -no

Some people just have the money, lol.
post #5 of 36
Quote:
Originally Posted by bmgjet View Post

Never seen a screen measured in FPS. All the screens Iv seen have been measured in HZ and Response time.
HZ and FPS cant be measured together since you can display 100+FPS at 60hz just means you wont be seeing every single frame change but you will have more up to date frames then if you were only getting 60fps.
But spot on with the response lag bit.
FPS is a measurement of how up to date a environment is ideally you want this to be as high as you can get it.
HZ on the other hand is how often your screen is changing its image.
But each to there own.
Iv seen lots of people always go on about how all you need is 30fps because thats all the human eye can see. Personally I cant stand anything below 100fps unless its in 3D. It just doesnt have the same feel to it, Even on a 60hz screen.

Apart from him calling it FPS instead of Hz, you just repeated what he said... confused.gif
     
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post #6 of 36
Quote:
Originally Posted by madkillav2 View Post

Quote:
Originally Posted by Deathclaw View Post

i'm happy with 40 fps minimum
should i pay 5 times more for it to go higher -no

Some people just have the money, lol.

Or the ambition. wink.gif
     
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post #7 of 36
Quote:
Originally Posted by Deathclaw View Post

i'm happy with 40 fps minimum
should i pay 5 times more for it to go higher -no

what you can't afford doesn't mean it's not better
post #8 of 36
Don't you get bad screen tearing if you disable vsync? I can't stand it... so I always use vsync.
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post #9 of 36
Quote:
Originally Posted by Viski View Post

Don't you get bad screen tearing if you disable vsync? I can't stand it... so I always use vsync.

Making a complete fanboy of myself. The latest Nvidia drivers have Vsync only when you need it. tongue.gif
     
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post #10 of 36
Quote:
Originally Posted by Deathclaw View Post

i'm happy with 40 fps minimum
should i pay 5 times more for it to go higher -no

No, you shouldn't unless you're unhappy.

Honestly, though, I doubt you're getting min 40fps in every game on max out there. Then again, you DON'T have to run it on max (but I do smile.gif )

To the op, good read, thanks.
    
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