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Mac: eGPU gaming: Internal fan noise
 

Mac: eGPU gaming: Internal fan noise  

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kkon
 kkon
(@kkon)
New Member
Joined: 10 months ago
 

Hi. This is a quick question to those that are using an eGPU primarily for Gaming.

I'm running a MacBook Pro 2017, 2,9Ghz and planning to get an eGPU primarily for gaming.

For my use case, the deciding factor for my purchase, is thermally preserving my MacBook Pro.
I.e., I usually run games on the lowest possible settings and I'm not interested in anything more than 720p, 30 fps.

I'd appreciate it if anyone could reply to this post with their experience on this.

I.e., I'm interested to know / confirm that an eGPU helps keep a Macbook quiet while gaming.

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


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joysthokkins
(@joysthokkins)
Active Member
Joined: 2 years ago
 

My MacBook is always hot)

rMBP 2014 750m 10.14.6
i9 9900k "Hac Pro" with Vega 56 and Sonnet Breakaway 650 with Sapphire Vega 64 –> iMac 2009 as display

DaVinci Resolve Studio 16.1b3 | FCPX 10.4.6


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chinsteig
(@chinsteig)
Trusted Member
Joined: 2 years ago
 

The MBP still houses the cpu, so any CPU-intensive game will cause it to heat up. At UW1080p 75hz  most of my games run at ultra settings and cpu runs around 60-65. Some games tend to run it at 70-80 but I've never had a problem with my MBP's. In windows I usually force the fans to run higher to keep temps lower but plan on machining a heatsink stand to see if it helps.

No point in using an eGPU if you are only looking for 720p 30fps, any decent laptop can do that by itself without breaking a sweat.

Mid 2017 15" MacBook Pro > ASUS XG Station Pro > RX 5700 XT > 34" 2560x1080 Ultrawide


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mac_editor
(@mac_editor)
Famed Member Moderator
Joined: 3 years ago
 

Macs typically run hot, and have very low thermal headroom. The gentle fan curve doesn't do any favors either. From past experience, and running MBPs at maximum CPU usage for days at once, I've never had an issue. @chinsteig's suggestion here is on-point.

purge-wrangler.shpurge-nvda.shset-eGPU.shautomate-eGPU EFI Installer
2018 MacBook Pro 15" RP560X + RX 5700 XT (Mantiz Venus)


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kkon
 kkon
(@kkon)
New Member
Joined: 10 months ago
 
Posted by: chinsteig

No point in using an eGPU if you are only looking for 720p 30fps, any decent laptop can do that by itself without breaking a sweat.

Thank you for your reply.

In fact this is exactly one of the reasons I'm considering it. Except for one title (Rise of the Tomb Raider), I've never encountered a native macOS game that can limit fps to 30. I know it's possible to do so globally, via driver panel, on Windows, but not so on macOS.

That means, that on my laptop, most games run easily at 60fps (on the low settings I use), causing a lot of heat.

In fact, I was amazed at the difference 30 fps made in Rise of the Tomb Raider, where the fans run silent throughout most of it.

 

This post was modified 10 months ago

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


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