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The GPU is outputting pixel rows at a perfectly fixed rate (the horizontal scan rate, or horizontal refresh rate). A 1080p signal (with a 45 pixel row VBI for a total of 1125 pixel rows per 1080p refresh cycle) has a scan rate of 1125x60 = 67 kilohertz.
During 300fps operation on 360Hz display ...

Short answer is with VRR on + V-SYNC option off, there is no longer a strict adherence to the VBLANK signal, which means VRR can still tear within its range in instances where frametime performance is unstable enough.

VRR on + V-SYNC option on fixes this.

In other words, the V-SYNC option ...

I will quote Chief from some posts and found him covering this topic. Hopefully having a brief reply from him too :D

Blur Busters Custom Resolution (CRU) Glossary 101 / FAQ
Vertical Sync: Also known as VSYNC or Vertical Blanking or VBI. There are hidden synchronization pixels beyond top edge ...

Can someone clarify how they interact when both are enabled? To my understanding, V-sync waits for the VBLANK signal to swap buffers. VBLANK signals are straightforward with a fixed refresh rate, as they occur at set intervals (33.3ms, 16.6ms respective to 30hz 60hz,...) However, I'm curious about ...

Hi ! I've just picked up a 180hz monitor, pretty sweet upgrade from 75hz i must say. Also the first time i get to experience LFC.
After a week i have some questions:

1. As advertised LFC only kicks in when fps is below minimum freesync floor but i have noticed that LFC seems to prefers to engage ...

real refresh rate when using variable refresh rate / g-sync / freesync
to get no tearing, you must add 1ms


Vsync coupled with VRR already taken care of tearing. Only a frame cap needed to ensure FPS never reach the VRR ceeling. I also noticed games paced better ( terms of frame time ) when Vsync ...

sky_dynasty wrote: ↑

21 Jan 2024, 14:24

FPS cap depends on monitor refresh rate.
240hz = 192fps
165hz = 140fps
144hz = 124fps
120hz = 106fps

Why such an aggressive frame cap below refresh rate ? With Vsync On only 3 frames below refresh will be suffice for proper VRR.

I set and forget according to this recommended by AMD
https://www.amd.com/en/technologies/free-sync-settings

Config #1
AMD Freesync - AMD Optimized
Radeon Anti-Lag - Enabled
Radeon Enhanced Sync - Enabled
V-Sync Off In-game


Enhanced Sync is horrible terms of fluidity. Often times there ...

the water is clear now Chief !

I want to make a correction for someone maybe come across this thread because now the title is rendered wrong information (it was at first place, my bad). Vsync is worst latency wise. But capping frame also poses frame pacing isssue for some games. I think it's a ...

FYI, what Hz are you? Classically the recommendation was 3fps below. The new recommendation is usually ~3% below, e.g. 360Hz should be capped about 10-15fps below.

There is some anecdotal evidence that for less performant VRR implementations ("G-SYNC Compatible" and "FreeSync") the error margin ...