Monitors limit fps ?

[Coolday]

for example 164hz monitor will limit max fps to 165 fps ? how those guys achieve 1000 fps ?

https://www.techpowerup.com/271482/overclockers-achieve-1000-fps-on-doom-eternal

[nox_]

3 minutes ago, Coolday said:

for example 164hz monitor will limit max fps to 165 fps ?

It won't, you pc components determine how much fps you will be getting.

Edited August 28, 2020 by nox_

[Hairless Monkey]

Monitors don't limit FPS. But, any FPS over the refresh rate of the monitor will not be displayed, although may help with perceived latency.

[Master Disaster]

Monitors don't limit the frames being outputted on the GPU, they simply display the ones they need, the rest are then discarded from the framebuffer by the GPU.

[Moonzy]

2 minutes ago, Coolday said:

for example 164hz monitor will limit max fps to 165 fps ? how those guys achieve 1000 fps ?

https://www.techpowerup.com/271482/overclockers-achieve-1000-fps-on-doom-eternal

unless you have vsync on or some cap on, games will run as they please regardless of monitor refresh rate

 

though some games will lock max fps to monitor fps automatically, rare though

[Master Disaster]

Just now, Moonzy said:

unless you have vsync on or some cap on, games will run as they please regardless of monitor refresh rate

 

though some games will lock max fps to monitor fps automatically, rare though

V Sync still has nothing to do with the monitor though, its handled purely in software.

[Coolday]

fps over monitor fps will be discarded so physically I can not pay a game beyond monitor fps but I can see the fps in benchmarks software ?

[Vishera]

4 minutes ago, HairlessMonkeyBoy said:

Monitors don't limit FPS. But, any FPS over the refresh rate of the monitor will not be displayed, although may help with perceived latency.

When i get FPS that is significantly higher then my monitor's refresh rate - the improvement in latency is very noticeable,mouse movement feels snappier.

[Master Disaster]

2 minutes ago, Coolday said:

fps over monitor fps will be discarded so physically I can not pay a game beyond monitor fps but I can see the fps in benchmarks software ?

Correct. Lets say your game is running at 120FPS  and your monitor is 60Hz, only one out of every two frames the GPU renders will be displayed, the other will be discarded.

 

Benchmarks measure the output to the framebuffer.

[Moonzy]

4 minutes ago, Master Disaster said:

V Sync still has nothing to do with the monitor though, its handled purely in software.

changing monitor changes vsync limit, but yes it's software controlled

i was only highlighting how a monitor may affect the fps cap

 

3 minutes ago, Coolday said:

fps over monitor fps will be discarded so physically I can not pay a game beyond monitor fps but I can see the fps in benchmarks software ?

you'll still see 164 frames every second, but if your games run at 1000fps, some frames will have less post-process to screen time

since some frames may be refreshed right before the screen display the next frame, so it'll grab the freshest frame from the buffer

 

so there are still benefit (latency wise) for running the game above refresh rate

 

there are other benefits as well, as some games update based on FPS, more fps = more precise updates

[Master Disaster]

Just now, Alex Ushigome said:

V-Sync limits the frames to the monitors refresh rate. It's a software limiter yes, but is decided by the monitor.

No, its decided by the GPU driver which asks the monitor for its maximum refresh rate then goes with that number. The monitor doesn't decide anything, it tells the driver what it can do, that's all.

[Moonzy]

1 minute ago, Master Disaster said:

its decided by the GPU driver

 

1 minute ago, Master Disaster said:

which asks the monitor for its maximum refresh rate

so, the GPU still asks the monitor for its max refresh rate, which is still decided by the monitor?

 

am i misunderstanding something here?

[Master Disaster]

1 minute ago, Moonzy said:

 

so, the GPU still asks the monitor for its max refresh rate, which is still decided by the monitor?

 

am i misunderstanding something here?

Yes, the monitor isn't making a decision, its reporting its capabilities. The driver is what makes the decision on what FPS to limit to based on what the monitor reports.

 

Driver asks monitor "What can you do?" > Monitors replies "1920x1080@120hz" > Driver then limits V Sync to 120FPS

Driver asks monitor "What can you do?" > Monitors replies "1920x1080@60hz" > Driver then limits V Sync to 60FPS

[Moonzy]

25 minutes ago, Master Disaster said:

Yes, the monitor isn't making a decision, its reporting its capabilities. The driver is what makes the decision on what FPS to limit to based on what the monitor reports.

 

Driver asks monitor "What can you do?" > Monitors replies "1920x1080@120hz" > Driver then limits V Sync to 120FPS

Driver asks monitor "What can you do?" > Monitors replies "1920x1080@60hz" > Driver then limits V Sync to 60FPS

so can we agree the monitor affects vsync?

 

unless im really missing some important key points here, feel free to DM me to not derail, im want to learn

[Master Disaster]

28 minutes ago, Moonzy said:

so can we agree the monitor affects vsync?

 

unless im really missing some important key points here, feel free to DM me to not derail, im want to learn

Its not that monitors don't affect V Sync, that's not what I said. Its that monitor have nothing to do with the process of V Sync happening.

 

TBF I probably should have made that a bit clearer and I can see why you were confused.

[Moonzy]

9 minutes ago, Master Disaster said:

Its not that monitors don't affect V Sync, that's not what I said.

maybe just bad wording then

56 minutes ago, Master Disaster said:

V Sync still has nothing to do with the monitor though

 

but yea, unless you have some sort of cap, games will generally run as fast as the computer allows it to run

 

unless i have some 1200Hz panel.

 

and yes there are benefits to running games higher than monitor refresh rate, and it's generally recommended, for fast paced games especially.

unless you cant stand tearing

 

edit: though some games hate running at high fps, due to game engine design, so do take note

[Master Disaster]

7 minutes ago, Moonzy said:

maybe just bad wording then

It was. The monitor sets the maximum value but the process of the vertical refresh rate being synced up to the vertical blank phase is handled entirely by the driver.