Question to users of MBP 15 2016 + Two LG UltraFine 5k

[Perwol]

Hi. I have question to users of Two LG UltraFine 5k with MBP 15 2016 (with 460 GPU would be best). If anyone of you could give me info about temps/fans rpm on clamshell mode? Is this config generate noise on idle? I need to know it before buying.

Sorry for my english...

 

[craig1410]

Hi,
I've got 2 5K displays and a 460 GPU but I don't run in clamshell mode because I want to be able to use the laptop display, keyboard, trackpad and touch bar. See attached photo. I'll try to take a look at the temps and fans tomorrow but I can't really run in clamshell as I don't have a keyboard and trackpad to use with it right now.

By the way, don't apologise for your English, it's very good.

 

[slaWter]

I'm using two LG 5Ks (Default Scaling) with the MBP (2.9GHz, 460) in clamshell mode. During casual usage (iTunes, Safari, YouTube) the fans are in the 2600-3000 RPM range. I can't hear the fans spinning, even when playback is muted. As a reference, before with a single 27" Cinema Display, the fans were spinning at around 2100 RPM. Radeon GPU Die temp is 59°C. Of course, that might all change a bit in the summer with higher room temps.

The Radeon Pro 460 is a must have anyway for two 5Ks due to the increased VRAM.

 

[craig1410]

Thanks for the reminder - mine are currently at 2900 (left) and 2700 (right) with GPU die temp of 65C (ambient around 22C). This is in non-clamshell mode with 2.7GHz CPU and 460 GPU. I ca only really hear the fans if I lean my ear down towards the keyboard but the sound is quite soft and not intrusive.

To give an idea of load, I'm currently doing web development so I have 2 Safari windows with 4 and 6 tabs respectively, Mail.app, Messages.app, Skype, 4 terminal tabs, Preview.app, Tower Git client, Textmate and my RubyMine IDE running in a total of 8 'spaces'

 

[slaWter]

Just a small update: running both screens with the More Space scaling option, the idle GPU Die temp is now about 5°C higher, around 63-65°C.
Performance is still good. But it takes less to spin up the fans.