MacBook Pro tempature quick test

The power code should be pluged into right side of Thunderbold port over left side of that.

Based on this information, I did a quick test on my environment.

TL;TR Hmmm... 🤔

My environment is like this:

MacBook Pro (15-inch, 2019)

2.6 GHz Intel Core i7

32 GB 2400 MHz DDR4

Radeon Pro 555X 4 GB

Intel UHD Graphics 630 1536 MB

I also uses Belkin's Thunderbolt Hub and 24" Dell external display via that hub. So both power and Thunderbolt is in one cable. Also the dongle of logitec MX Keys is attached because of the connectivity issue. The hub was connect to left side (which seemed terrible based on the article) and the dongle was right side.

What I did

Disconnect dongle from right.

Disconnect hub from left.

Connect the hub to right.

Connect the dongle to left.

Disconnect external display from hub.

Connect external display to left.

Move external display to right.

Disconnect external display.

Disconnect dongle.

Disconnect hub.

Connect hub to left.

Connect dongle to left.

Here's graphs of iStatMenu

Right Thunderbolt Proximity

https://gyazo.com/3a626ade2085d050e258eaebf3bfad28

Left Thunderbolt Proximity

https://gyazo.com/eae484f63ef57b7077ea4a0b4beb169c

Left Air flow

https://gyazo.com/d9b5765044b363387137518fa2149700

Right Air flow

https://gyazo.com/0ecf9907211bb63a98a79037f9283dd7

CPU

https://gyazo.com/b76cfcfdc88b0ac3b53475b44a882e25

What I see

External display raises the tempature (of course)

Even simple dongle raises the tempature for 10 degree!!!!

Connecting both power and external display is worse than using hub (lower tempature).

For me, connecting the hub to left side is better result than right side.

Connecting two things to both left side is better than splitting them to left and right one by one.