Author Topic: Beat my Frame Rate? (Read 2098 times)

zmeg · « **Reply #15 on:** March 30, 2004, 09:43:30 PM »

Quote

Originally posted by Wilbus
The monitor has no limitations as far as I know when it comes to Frame rate. Frequency is often missunderstood with frame rate. My monitor frequency is 75Hz at 1600x1200. It doesn't affect frame rate though.

Actually if your refresh rate is 75 then you can never display more than 75 fps. The fps number you see is what the card could do if your monitor could display it.

Eagler · « **Reply #16 on:** March 30, 2004, 10:45:12 PM »

vsync locks the monitor freq to the video card providing the limit of the monitor freq to be the fps cap.

when vsync is turned off, the fps is not tied to the monitor and numbers as shown above are produced. i think the problem lies in the fact that though the video card produces high fps, if your system can't keep up, you get things like rubber bullets

maybe with todays super fast systems, vsync isn't really needed as it once was..

Wilbus · « **Reply #17 on:** March 31, 2004, 02:27:14 AM »

Exactly Eagler, monitor is only tied to FPS update rate if Vsync is on.

I will go and fly some with Vsync off and see how it performs.

Have tried some but not much, had no problems.

ChasR · « **Reply #18 on:** March 31, 2004, 04:05:02 PM »

The monitor will never display more frames per second than its refresh rate. Refresh rate of 75Hz = 75fps. Regardless of the number at the top of the screen, the monitor displays frames at its refresh rate. Excess frames produced by the card are dropped by the monitor causing tearing of the display and reduced image quality. With vsync off the image you see on the monitor and the image produced by the card are different. With it on they're the same and the maximum fps displayed = the monitor refresh rate.
Vsync locks the card to the monitor refresh rate, not the other way around. If you really want a higher refresh rate, you have to set your monitor to display at a higher rate, not turn vsync off.

Skuzzy · « **Reply #19 on:** March 31, 2004, 04:28:21 PM »

ChasR is quite correct.

For the sake of math, if your monitor is running at 60Hz, and you show a frame rate of 180FPS, then, best case, you are seeing 1 in 3 frames (two frames of data are thrown away), worst case; the video card tries to blast all the 3 frames and you end up with 3 overlapped images with tearing occuring in at least 2 regions.

Wilbus · « **Reply #20 on:** March 31, 2004, 05:00:01 PM »

ok...

Morpheus · « **Reply #21 on:** March 31, 2004, 10:26:38 PM »

Quote

Originally posted by zmeg

2400+, Ti 4200, 1600x1200x32, V-sync off Duh

What do you mean 2400+? is this an AMD card?

moot · « **Reply #22 on:** March 31, 2004, 10:54:17 PM »

Halo · « **Reply #23 on:** April 01, 2004, 12:20:08 AM »

Whew, for a moment there I thought we were going to see the first perked computer.

I guess it is for sure AH2 will not work on an Atari ST.

Wilbus · « **Reply #24 on:** April 01, 2004, 12:54:16 AM »

AMD Atlhon 2400+ is a CPU.

38ruk · « **Reply #25 on:** April 01, 2004, 03:07:50 AM »

well, i havent figure out how to post an image , but if i look straight up through a p-51 i get as high as 262 fps with vsync off, though i never leave it off.... i though i would see what i could get , xp3200 9800 pro 1600 X1200 ~~38maw~~

capera · « **Reply #26 on:** April 01, 2004, 04:45:36 AM »

So I guess I need a monitor with a 120Mhz refresh rate.

Wilbus · « **Reply #27 on:** April 01, 2004, 05:33:46 AM »

seems like it capera...

ChasR · « **Reply #28 on:** April 01, 2004, 08:42:46 AM »

I don't think your eyes and brain can tell the difference between 85fps and 100fps. Some folks may be able discern flicker @ 60 fps. Anything over 72fps is considered flicker free. 120fps is overkill. Furthermore, many CRT monitors lose image quality when you run them over 85fps at high resolutions.

DREDIOCK · « **Reply #29 on:** April 01, 2004, 03:35:10 PM »

Quote

Originally posted by ChasR
The monitor will never display more frames per second than its refresh rate. Refresh rate of 75Hz = 75fps. Regardless of the number at the top of the screen, the monitor displays frames at its refresh rate. Excess frames produced by the card are dropped by the monitor causing tearing of the display and reduced image quality. With vsync off the image you see on the monitor and the image produced by the card are different. With it on they're the same and the maximum fps displayed = the monitor refresh rate.
Vsync locks the card to the monitor refresh rate, not the other way around. If you really want a higher refresh rate, you have to set your monitor to display at a higher rate, not turn vsync off.

I am curious
Then why do they keep comming out with better and better Video cards capable of mega FPS when most monitors do not have a refreash rate more then 80hz?
Least thats the fastest I've found