eGPU Issues with Gaming
 
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[Solved] eGPU Issues with Gaming  

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(@squidnugget77)
Active Member
Joined: 3 months ago
 

I have a Mac Mini 2018 with a intel Core i7-8700B CPu @ 3.2GHz 6 core.

I hooked up a AMD Radeon RX 5700 XT with a Sonnet eGFX Breakaway Box 550

I ran Rainbow 6 Siege benchmark when I first got it working on Windows partition and got about 100-120 FPS.

Next time I ran it (all of these are on all high settings btw) it hit 30 at most.

Ever since that its been hitting 20-30 on all games, regardless of low or high settings (Only exception was Subnautica where it went 30 on all high to 90 on all low).

Games I've tried include Rainbow Six Siege, SCP: Secret Laboratory, Fortnite, Warface, Subnautica, Subnautica: Below Zero).

 

This is an example of the information and frames during a SCP: SL game.

 

I'm genuinely confused on what's capping FPS, if anything is. Only thing that changed between them is moving the computer itself to a better cooling position on my desk, and adding AMD Radeon driver software (the optional one for the card I got). I deleted this afterwards, and nothing changed. 

Any thoughts?

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


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Mini i5
(@mini-i5)
Reputable Member
Joined: 7 months ago
 

@squidnugget77

I would return the card for a new one. 

2018 Mac Mini i5 / 6-core 3.0-4.1 Ghz / 32GB / 256GB / Intel UHD 630 / PowerColor Gaming Station / PowerColor dual-fan RX5700 XT / Mac OS 10.15.4 Catalina / Windows 1809 / LG 27" 4K display


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(@squidnugget77)
Active Member
Joined: 3 months ago
 

@mini-i5

it works on Mac (I figured it out somehow by switching cables cause it was capping FPS) but I  still have no idea whats happening with Windows

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


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Username
(@username)
Reputable Member
Joined: 3 years ago
 

If the card only consumes 40W which is below normal idle consumption it’s no surprise your FPS barely moves. 

the card should with ease consume 200W under load. 

Perhaps a power cable matter or a power setting that is neutering your card. 

Present: 2012 Mac mini + PowerColor RX 56 Vega Nano @10Gbps-TB1 +
PowerColor eGFX Mini 180F via TB3->TB2 adapter + macOS Catalina 10.15.4

Previous: 2012 Mac Mini + [email protected] (AKiTiO Thunder3 via TB3->TB2 adapter) + macOS


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