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Stuttering egpu rtx 2080ti in 4k gaming. Is it normal or do I have something wro...
 

Stuttering egpu rtx 2080ti in 4k gaming. Is it normal or do I have something wrong?  

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cuppino
(@cuppino)
Eminent Member
Joined: 1 year ago
 

Hello everyone,
I use the signature configuration and I have a doubt (or maybe a problem ?!).
I can't play permanently in 2160p (all the details at most) to all games with stable 60fps (I play on samsung tv 4k hdr and over 60hz I can't set).
This resolution presents me with a lot of stuttering.
A cod modern warfare 4 in some areas I have 60 stable and in other sudden drops to 35-40 fps which then go back quickly.
Even in vampyr I have a similar situation.
If I lower the resolution to 1440p everything is stable at 60fps
In lighter games like pes 2019 everything is stable even at 2160p
I know that using an egpu you have a bit of a performance drop, but is it normal that I should "settle" for playing 1440p or something is not working as it should?
I thought that a rtx 2080ti card gives you € 1500 and an imac with i9 could hold 4k also as egpu.
Fortunately the TV upscale well and from 1440p to 2160p the difference is minimal.

iMac 27" 5k 2019 (i9 9900k 3,6ghz, 40gb ram ddr4 2666 mhz, ssd 1tb, dgpu Radeon pro vega 48 8gb), Egpu: Razer Core X with ZOTAC GAMING GeForce RTX 2080 Ti AMP Extreme Core
Osx 10.14.6
Windows 10 pro 1903 (bootcamp with external ssd 1tb Samsung evo 860)


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OliverB
(@oliverb)
Noble Member
Joined: 1 year ago
 

@cuppino
If I may have  a hint/question:
Why are you using a SATA external SSD? You steal yourself with about 50% bandwidth? My tip is: Use a NVMe external SSD, it brings you double the speed! For $60 I have assembled an NVMe SSD does 900Mbytye/s compared to the 400-450 Mbyte/s of a SATA SSD.

2018 15" MBP & 2015 13" MBP connected to RTX2080Ti GTX1080Ti GTX1080 Vega56 RX580 R9-290 GTX680


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jerry Kansai
(@joi_kansai)
Estimable Member
Joined: 2 years ago
 
Posted by: cuppino

Hello everyone,
I use the signature configuration and I have a doubt (or maybe a problem ?!).
I can't play permanently in 2160p (all the details at most) to all games with stable 60fps (I play on samsung tv 4k hdr and over 60hz I can't set).
This resolution presents me with a lot of stuttering.
A cod modern warfare 4 in some areas I have 60 stable and in other sudden drops to 35-40 fps which then go back quickly.
Even in vampyr I have a similar situation.
If I lower the resolution to 1440p everything is stable at 60fps
In lighter games like pes 2019 everything is stable even at 2160p
I know that using an egpu you have a bit of a performance drop, but is it normal that I should "settle" for playing 1440p or something is not working as it should?
I thought that a rtx 2080ti card gives you € 1500 and an imac with i9 could hold 4k also as egpu.
Fortunately the TV upscale well and from 1440p to 2160p the difference is minimal.

Such drops on different areas on open world maybe because thermal throttle, how is i9 temperature while running that game that has FPS drops issue. Yeah PES isn’t so demanding with your gpu i think you can even play 8K 60fps.

Razer Blade 15 2018, i7 8750H 16gb ddr4 2666mhz 1tb 970Evo
Razer Blade Stealth 12,5 2016 i7 7500U 8gb ddr3 1866mhz 500gb 970Evo
MacBook Pro 13 mid 2012 i5 3210M 12gb ddr3 1600mhz 500GB HDD
Razer Core V2 rtx 2070 Black 2040mhz Boost clock
Previous setting: rtx 2080ti Asus Turbo, rtx 2080 xc gaming, rtx 2080 Fe, Zotac Mini 1080ti, Evga 1080 FTW2 gaming.
Dual Monitor Predator XB241YU 165Hz 1440p, LG l24UD58 60Hz 4K
Portable Monitor Magedok 1440p HDR 60Hz usbA/C monitor


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OliverB
(@oliverb)
Noble Member
Joined: 1 year ago
 

@cuppino
genereally spoken:
For a eGPU setup it doesn't care a lot if you game at 1440p or 2160p (unless to render to internal display). Resolution is never the issue.

2018 15" MBP & 2015 13" MBP connected to RTX2080Ti GTX1080Ti GTX1080 Vega56 RX580 R9-290 GTX680


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cuppino
(@cuppino)
Eminent Member
Joined: 1 year ago
 

Thank you all for the answers!
I also did tests using the Mac internal SSD and the performances are identical. On windows I just have to play, so the ssd sata I think is enough.
I verified with msi afterburner that the CPU temperatures were very variable (from 60 ° to 100 °!). The CPU frequency has never fallen below 4700mhz even at 100 °. The drops in fps also occurred in cooler CPUs.
Now I downloaded macsfancontrol and I increased the fixed CPU fan to 2100rpm.
The cpu in gaming is now much cooler and remains around 75 ° / 80 ° with peaks of very few seconds at 87 °.
The decrease in fps seem to have decreased but not eliminated!
In COD, when the character falls from the sky and opens the parachute it oscillates between 40 and 60fps, but as soon as it touches the ground they remain between 60 and 55 fps approximately.
Perhaps the resolution is not the problem, but at 1440p I have solid 60fps without touching anything and with maximum details.
Do you suggest other tests? Or do I already feel satisfied?

This post was modified 7 months ago

iMac 27" 5k 2019 (i9 9900k 3,6ghz, 40gb ram ddr4 2666 mhz, ssd 1tb, dgpu Radeon pro vega 48 8gb), Egpu: Razer Core X with ZOTAC GAMING GeForce RTX 2080 Ti AMP Extreme Core
Osx 10.14.6
Windows 10 pro 1903 (bootcamp with external ssd 1tb Samsung evo 860)


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sandblau
(@sandblau)
New Member
Joined: 7 months ago
 

Your configuration sounds very interesting. Maybe you can answer a few questions please?

Which ATI driver do you use on Windows Bootcamp? Can you use the internal screen of the Imac when the egpu is connected? What is the volume of the Imac's fans? Are they loud at full load?

Pending: Add my system information and expected eGPU configuration to my signature to give context to my posts


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