Is it impossible to have sikly-smooth 60fps VSYNC at all times in high-end 3D games?

himmatsj

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So yeah, I am wondering the above. Is there any truth to the statement?

The reason I ask is, I have used my video card on all the graphics settings for Bioshock Infinite. I get 75+ fps average on High, 85 on medium, 95 on low and 120 on very low.

However, no matter what option I choose, there is ALWAYS stutter while I turn vsyn on, especially when I get to new areas, kill enemies using melee weapons and generally when there is a lot on Screen.

For example on medium, when I go through an area with no vsync, the absolute lowest it drops is 71 fps. Much higher than 60fps. But still with vsync on in that same area, I see drops and stutter. Very frustrating. Happens with Very Low settings as well.

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So, my thinking is unless you have a super high end GPU with massive bandwith, stutter with vsync is something we have to live with?

My explanation is that with vsync on, your GPU is limited. Instead of operating at 99% load, it operates...say maybe 60%. But then, suddenly, a "heavy" scene comes about and your GPU is suddenly accelerated to work at 99%. The GPU takes a fraction of a second to respond, and hence the stutter. Does this adequately explain why stutters exist in Vsync-enabled high-end 3D games?

What is the solution to this?
 
Solution
3D compatible displays are 120Hz which mean they update 120 times a second. When you turn on Vsync it trys to keep the fps the same as the refresh rate which for a 120Hz monitor is 120fps. As you are not achieving 120fps at any point it will appear stuttery. So to acheive smooth gameplay with a 120Hz monitor with V-sync enabled you will need a graphics card capable of delivering 120fps.

bluehowell

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3D compatible displays are 120Hz which mean they update 120 times a second. When you turn on Vsync it trys to keep the fps the same as the refresh rate which for a 120Hz monitor is 120fps. As you are not achieving 120fps at any point it will appear stuttery. So to acheive smooth gameplay with a 120Hz monitor with V-sync enabled you will need a graphics card capable of delivering 120fps.
 
Solution

himmatsj

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I am of course referring to a 60HZ monitor.
 

himmatsj

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I am of course referring to a 60HZ monitor.
 

Hardware Fanatic

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This isn't true from my experience, if a game can't hold a constant 120fps then vsynch caps it at 60 instead. And to answer the OP's question, what graphics card do you have?
 

bluehowell

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Sorry about that, I now understand. I thought you were talking about gaming in 3D such as Nvidia 3D Vision which requires 120Hz. 120Hz monitor can run at 60Hz also. Do you have the most up to date drivers?