RX 5700 XT eGPU issues on 2013 15-in MacBook Pro
 
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RX 5700 XT eGPU issues on 2013 15-in MacBook Pro  

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Ajay
 Ajay
(@ajay)
Active Member
Joined: 7 months ago
 

@itsage, I hope you can help me out.

MBP late 2013 retina, 2,3 QC i7, 16GB, NVIDIA GeForce GT 750M 2 GB, Intel Iris Pro 1536 MB, MacOS Catalina 10.5.5

eGPU Razer Core X, Powercolor RX5700XT, TB2-3 adapter and TB2 cable

external BenQ SW320 via mini displayport to displayport on the eGPU.

Installed purge wrangler (with AMD selected and t182 yes) and after reboot connected the eGPU. Mac menu bar says eGPU connected. external monitor looks pale.

THEN, SYSTEM SLOWS DOWN almost to a complete halt. Mouse is working fine but apps only respond after several seconds and system keeps going slower. After disconnecting eGPU via the menu system is getting faster back to normal after some time.

 

Any ideas how to fix this issue?

If all works I would like to post my build with the solutions.

Thanks!

Ajay

 

MBP retina 15, late 2013, (I7-4850HQ),16GB, TB2, Razer Core X, Powercolor AMD RX 5700 XT Red Devil, BenQ SW320

 
2013 15" MacBook Pro (GT750M) [4th,4C,H] + RX 5700 XT @ 16Gbps-TB2>TB3 (Razer Core X) + macOS 10.15.5 [build link]  


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itsage
(@itsage)
Illustrious Member Admin
Joined: 4 years ago
 

@ajay, What's the exact model name of the PowerColor RX 5700 XT graphics card? Do you have a way to test and make sure it's working well?

Also good to read @mac_editor's master thread on a Mac with 750M dGPU.

 

external graphics card builds
best laptops for external GPU
eGPU enclosure buyer's guide

 
2020 14" MSI Prestige 14 EVO [11th,4C,G] + RTX 3080 @ 32Gbps-TB4 (AORUS Gaming Box) + Win10 2004 [build link]  


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Ajay
 Ajay
(@ajay)
Active Member
Joined: 7 months ago
 

@itsage, Thanks for your swift reply!

It's the PowerColor AMD Radeon RX 5700 XT Red Devil 8GB GDDR6

Unfortunately, I have no other way to test this card.

Thanks for the pointer to Mac with 750M dGPU. CC @mac_editor.

Decided to run https://github.com/mayankk2308/purge-nvda and the slowing has gone away!

Ran Unigine Vally and the benchmark went from a miserable FPS: 4.8 and Score 199 without eGPU to FPS 70.3 and Score 2942 with eGPu 😉

The only thing was that the SW320 monitor is displaying quite pale. After changing the systems settings for the SW320 - HDR was checked for some unknown reason!- the display is now rendering correct!

I apologise not being able to find this thread myself and thus having to bother you. I will post my build and workaround a.s.a.p!

Should you have any further insights, please let me know!

Cheers, Ajay

 

MBP retina 15, late 2013, (I7-4850HQ),16GB, TB2, Razer Core X, Powercolor AMD RX 5700 XT Red Devil, BenQ SW320

 
2013 15" MacBook Pro (GT750M) [4th,4C,H] + RX 5700 XT @ 16Gbps-TB2>TB3 (Razer Core X) + macOS 10.15.5 [build link]  


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itsage
(@itsage)
Illustrious Member Admin
Joined: 4 years ago
 

@ajay, That's good to hear. HDR settings are ON by default in most recent macOS versions when it detects a compatible HDR monitors. The majority of monitors render HDR terribly in macOS so turning it off is best.

 

external graphics card builds
best laptops for external GPU
eGPU enclosure buyer's guide

 
2020 14" MSI Prestige 14 EVO [11th,4C,G] + RTX 3080 @ 32Gbps-TB4 (AORUS Gaming Box) + Win10 2004 [build link]  


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