MacBook temperatures with eGPU, any better?
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[Solved] MacBook temperatures with eGPU, any better?  


Francesco Ripa
Active Member
Joined: 2 years ago

MacBook temperatures with eGPU, any better?


The main reason why I bought an external GPU is temperature. I never needed one on my desktop computers but now with a shared portable I’m in big troubles.

These are the temperatures I’m talking about:


Idle or Safari, iTunes, Mail



System Updates or Maintenance



Final Cut Pro or ffmpeg, Photoshop



I believe these temperatures are not suitable for internal parts, like CPU and iGPU. I know this because my 10 years old iMac it’s 1/2 the performance now with a far better system installed. I also tried with 2 140 mm fans below the MacBook Air with no luck.

Other reasons than that are of course performance boost, multiple monitors, devices compatibility, portability and price.


Update: with eGPU connected and heavy GPU apps running the difference is huge. Temperatures dropped with fan around 2200 rpm all the time.

2021 Intel TB4 | i5-11400F 2,6 GHz - 16GB 3200 MHz DDR4 - NVMe 250 GB PCIe 4.0 - RX 570 4GB GDDR5
2019 MacBook Air (MacBookAir8,2, i5 1,6 GHz, 8 GB) + RX 570 @ R43SG-TB3
2010 21.5-inch iMac (Custom Build, i5 3,2 GHz, 12 GB, AMD FirePro M4000 1GB GDDR5)