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What is V Sync?

Tags:
  • Graphics Cards
  • Performance
  • Video Driver
  • Graphics
Last response: in Graphics & Displays
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December 11, 2001 2:37:09 AM

hey can anyone tell me what is V Sync and what performance effect it has if enabled or disabled
i ahev a video driver that let V Sync(when turned off) increase or decrease in steps what number should i use 2 get max performance?
and 1 more question how do i display Frame rate in Quake 3
THX

"Giving Up is the step towards failure"

More about : sync

December 11, 2001 12:57:30 PM

Vsync - means tell the video card to wait for the next full screen refresh before drawing. If you have a vertical refresh rate on your monitor of say 85hz and you're drawing to the screen at say 100 frames per second you'll get "tearing" in the display. This phenomenon is difficult to see even when you're looking for it so most people turn off vsync just to stop the monitor refresh rate from "holding back" your fps. In truth it doesn't make much of a difference unless you are benchmarking.

The console command to see the framerate in quake 3 is:

/cg_drawfps 1

you should also check out:

/com_maxfps 125

Q3 by default "caps" your fps at 85...stops the video subsystem from hogging the cpu from the network and other subsystems. Setting the "cap" to 125 will allow you to do certain moves you could not otherwise do with quake (like the megahealth jump on q3dm13).

Most questions relating to video performance and q3 would be better answered on the forums at http://www.quake3world.com

Happy fragging :) 
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December 11, 2001 6:04:37 PM

Thx for the help buddy i really appreciate that

"Giving Up is the step towards failure"
December 12, 2001 8:11:54 AM

V-sync is the origional name of N' Sync, see the producers felt the v gave them a girly feel, so they changed it to N, and the rest is history.

"The Cash Left In My Pocket,The BEST Benchmark"
No Overclock+stock hsf=GOOD!
December 12, 2001 1:07:46 PM

Every time you say "NSync" your penis will shrink. Be careful.
!