Will switching from 1080p to 1440p stop bottlenecking (3770k & 1080ti)

lukas13x

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Apr 17, 2013
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I've just bought a MSI 1080ti GAMING X, upgrading from the MSI 980ti Gaming G6 and I've noticed that my CPU is running at 90-100% when gaming.
I mostly play rainbow six siege but will be getting Battlefield 5 if its any good and might play some Battlefield 1 too. Looking forward to Metro Exodus too.

I have the 3770k oced to 4.5ghz at 1.23v stable with a nzxt x52 240m rad as cooling, I never reach above 70c.

I had been planning to upgrade my whole system but decided not to with the new 9th gen Intel not being worth it and don't want to buy AMD, I thought I will wait for Ryzen 3rd gen or Intel 10th gen to upgrade so just bought a used 1080ti instead and have encountered this problem.

Right now I'm using an ASUS 24 inch 1080p 144hz monitor, will my bottlenecking stop/improve if I got a 1440p 144hz monitor? (I dont want 4k as I've read everyone recommends 1440p 144hz better than 4k)

Thanks.
 
1440p would reduce the bottleneck somewhat but 4K 60hz would almost entirely eliminate it. You won't exactly be running at 144fps with that CPU either. Maybe 90-110 fps but getting there will cause added pressure on your CPU that you really don't want. 4K 60hz would be best for your setup.
 

lukas13x

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Apr 17, 2013
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Do you think my cpu will still be running at 90-100% load even at 1440p or would it reduce to 70-80% or so?
Im debating where to go 1440p or 4k and im leaning towards 1440p 144hz as 4k is limited to 60hz.
 
The question would be: do you want your CPU doing other things while gaming or is this a not getting high enough frame rates / frame pacing issue?

At higher resolutions, CPU utilization is less because the graphics engine takes longer to draw and then signal for the next frame to be setup, hence less used CPU time. This would free up CPU time for background tasks.

If you are concerned about overall frame rates/ frame times, that is an entirely different issue.
 

lukas13x

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The only background things running would be Opera web browser, teamspeak, steam, and a few monitoring apps like nzxts cam and that. Nothing else. Most time opera is off anyway so its just gaming.

 

boju

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Should see lesser cpu usage the higher you go in resolutions as fps reduces. More fps you get the more frames the cpu has to get ready which results in higher usages.

There's a video on Youtube of a guy showing what an 8600k is doing in BF1 as he increases the refresh rate. This was standing still not fighting yet and cpu usage was in the 90s at 144Hz.

[video="https://www.youtube.com/watch?v=Qo3EJzHuXok&t=1s"][/video]

High cpu usage is ok if youre not getting stutters and reasonable frame rates. On my pc 2600k @4.5 1080Ti 1440p 144Hz no antialiasing playing Farcry5 and Ghost Recon my cpu usage fluctuates around 85% with frame rates between 70~100. Hyperthreading turned off my cpu usages are pegged at 95% and i do get reduced frame rates so too high cpu usage can have a negative affect as is known.

Even 8700k with HT on also runs in the high 80s cpu at higher frame rates in 1440p.

What you could try is dsr or ingame resolution scaling to lower fps as suggested or any background running apps might help usages if you set affinity to move them away from the primary core, perhaps 7 and 8th thread (4th core)