Will a larger 144 hz monitor hurt my FPS significantly on a 27" monitor?

tkreger

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Aug 9, 2012
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Hello,
I have two monitors now:
1. ASUS 27" MX27AQ 27" WQHD 2560x1440 IPS (60Hz)
2. ASUS VG248QE 24" Full HD 1920x1080 144Hz 1ms HDMI Gaming Monitor

I have an i7 7700K processor, and an NVIDIA GTX 1080 (not Ti) GPU.

I normally play War Thunder and PUBG on the 27" which runs at about 70 FPS with the graphics settings i like but the image is not as good as i thought it would be - even at 1440.

When I switch to the smaller 144Hz monitor I get about 120 FPS and the picture is smooth and detailed. But I really like the larger screen monitor.

So question: If I buy a 27", 2560x1440, 144Hz monitor, will my frame rate be reduced to the point where it was a bad decision, and nothing is gained? Do i need a better GPU, like the 1080 Ti then?

I thought the 1080 would get me better FPS on the 27", but there is one important ingame graphics setting (SSAA 4X) that really improves screen image detail - needed to spot enemy tanks at distance. but again, when I tick that choice, FPS goes from 170 to about 70. And it's still not as smooth as the 144Hz monitor.

Any other suggestions / thoughts?

Thanks!!

 
Solution
You already know what the FPS will be, that is going to be up to you to decide. You can think of it as an investment. You will have less FPS output if you stick to QHD, but at some point you will replace the GPU and can achieve more. That is how I looked at it.

That is the monitor I have with my GTX1080 and i7-7700k, but for what I play somewhat regularly my computer is fast enough to keep the FPS at 90FPS or more. Buying an $800 monitor and a $650 GPU was a bit much (both at launch), so I am planning to hold out for Nvidia's next process node shrink. The RTX cards are shiny, but not at those prices.
Well you basically already have your answer since you can test the FPS output at the higher resolution.

The Hz of the monitor won't change the computer's capability to output FPS. When you can get 120+ FPS then yes, it will offer the same smoothness as the 1080p monitor, but if you have to reduce settings, that is the trade off.

Now, getting a larger 1080p 144hz (or more) monitor is an option, but then the pixel density will be quite low.
 

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Would this monitor be a good choice, or the FPS would be too low and offset any gains?
ASUS ROG Swift PG279Q 27" 2560x1440 IPS 165Hz 4ms G-SYNC
 
You already know what the FPS will be, that is going to be up to you to decide. You can think of it as an investment. You will have less FPS output if you stick to QHD, but at some point you will replace the GPU and can achieve more. That is how I looked at it.

That is the monitor I have with my GTX1080 and i7-7700k, but for what I play somewhat regularly my computer is fast enough to keep the FPS at 90FPS or more. Buying an $800 monitor and a $650 GPU was a bit much (both at launch), so I am planning to hold out for Nvidia's next process node shrink. The RTX cards are shiny, but not at those prices.
 
Solution
With a 60Hz display, you need to lock the frame rate to 60, or you'll get terrible tearing, which won't help gaming precision.
That SSAA option is notoriously hard on the system, try using other options available in the Nvidia driver suite: Open the Control Panel and then ' manage 3D settings ' select the 'programs ' option, scroll down to your chosen game and make the changes there, that way those changes will be local to that particular game and won't affect others.
 
It is not the size of the monitor that affwcts performaance, it is the resolution. A 100 inch 1080P monitor will perform the same as a 24 inch 1080P monitor. the GPU doesn't care how big the pixels are, only how many of them it has to compute, At a given resolution, a smaller monitor will always appear sharper than a larger monitor (unless you sit further away from the larger monitor).

The higher the resolution, the more pixels that are computed, and therefore the more graphics horsepower needed to maintain a given frame rate.
 


2560x1440 = 3,686,400 pixels on the screen
1920x1080 = 2,073,600 pixels on the screen

The second monitor has only 56.25% the number of pixels as the first monitor. Or, put another way, the first monitor has 177.78% of the number of pixels that the second one has.

Not surprisingly 120 fps ÷ 1.7778 = 67.5 (about 70) fps.

So, yeah, it makes sense that with the same settings, and pushing that many more pixels, the frame rate will be lower by that amount.

The size of the monitor is irrelevant. The resolution of the monitor is what is important. With the higher resolution, the video card has to do about 78% more work to generate each frame.