Nvidia FastSync /Amd Enhanced Sync

[CuriousIndian1769]

When do you guys think is Fastsync/Enhanced Sync best optimized, i know that the fps should be higher than refresh rate but like how much higher in a 60hz monitor so that it is ideal for gaming ? And please share your experiences with these while gaming and what you think?!

[Princess Luna]

I don't know about AMD's alternative but FastSync will work whenever the fps above refresh rate even if a single frame higher but you'll get tearing if it goes below the refresh rate.

[CuriousIndian1769]

1 hour ago, Princess Luna said:

I don't know about AMD's alternative but FastSync will work whenever the fps above refresh rate even if a single frame higher but you'll get tearing if it goes below the refresh rate.

Are you sure some people were saying that it needs to be at least twice the refresh rate? Anyways thanks for the insight 

[Princess Luna]

9 minutes ago, CuriousIndian1769 said:

Are you sure some people were saying that it needs to be at least twice the refresh rate? Anyways thanks for the insight 

That's ideal but not required, the technology goes 1:1 if you double it which in theory should make it "perfect" to eliminate tearing but tearing already is eliminated by simply going above refresh rate from all my testing.

[RejZoR]

1 hour ago, Princess Luna said:

I don't know about AMD's alternative but FastSync will work whenever the fps above refresh rate even if a single frame higher but you'll get tearing if it goes below the refresh rate.

That's not true.

 

Fast V-Sync synchronizes framerate to the screen refresh internally and (internally) drops frames that go past the refresh rate. Programs will think they are having 300fps, but 60Hz screen will only be getting 60fps on the graphic card output. Image will never tear, but only works the best on +100Hz screens where you can consistently deliver high framerate, because 60fps is minimum for smoothness, if you're dropping frames there, it'll be bad. Or so I heard coz I'm on 144Hz monitor and never noticed any issues.

 

Adaptive V-Sync literally enables or disables V-Sync based on framerate. If higher than refresh it's ON, if lower it's OFF.

 

Enhanced Sync is similar to Adaptive V-Sync. It may slightly tear sometimes just like Adaptive V-Sync, but never to annoying degree.

[porina]

My understanding of Fast Sync is a little different again. I thought basically it allows the system to render frames as fast as it can. When the time comes to draw a frame, the latest complete frame is used, so there is no tearing. IMO the benefit is more for lower refresh rate displays. With a high refresh rate display, even if V-sync is on, the additional latency is less due to shorter overall cycles.

 

2 hours ago, Princess Luna said:

I don't know about AMD's alternative but FastSync will work whenever the fps above refresh rate even if a single frame higher but you'll get tearing if it goes below the refresh rate.

Nvidia had explicitly stated Fast Sync doesn't have tearing.

https://www.anandtech.com/show/10325/the-nvidia-geforce-gtx-1080-and-1070-founders-edition-review/13

[Princess Luna]

49 minutes ago, porina said:

Nvidia had explicitly stated Fast Sync doesn't have tearing

Whenever your fps is above refresh rate as per what I wrote if you'd be so kind to pay attention to.

 

Below there's tearing unless you have adaptive sync alongside.

 

You can test it yourself, if you find different experience from what I did let me know

[porina]

6 minutes ago, Princess Luna said:

Whenever your fps is above refresh rate as per what I wrote if you'd be so kind to pay attention to.

 

Below there's tearing unless you have adaptive sync alongside.

 

You can test it yourself, if you find different experience from what I did let me know

I'll give it a try. I don't recall seeing that stated, but that doesn't mean it isn't so either. As said, I normally don't use Fast Sync since I have G-sync. I have a 144 Hz display, and my main time sink does not reach 144fps so it will be easy to test later.

[Princess Luna]

3 minutes ago, porina said:

I'll give it a try. I don't recall seeing that stated, but that doesn't mean it isn't so either. As said, I normally don't use Fast Sync since I have G-sync. I have a 144 Hz display, and my main time sink does not reach 144fps so it will be easy to test later.

Me too, I think it's a great solution for competitive shooters where you do want that extra frames to decrease the input lag but also can't stand tearing.

 

But since I only play slow paced single player games I tend to V-Sync Triple buffered with G-Sync as well... butter smooth gameplay :3

 

I could try it out as well later, because now that I think about it it has been like a year since I even tested it out drivers changed a lot and maybe they have fine tuned it as well.

 

Cheers!