iMac Pro display versus LG 5K Ultrafine

This is a similar question to

LG UltraFine 5K Monitor color temperature

I actually tried to reply there but it looks like it won't let me.

I just got an iMac Pro. I've noticed the monitor looks a little warmer than my LG 5K. I was wondering if other people have noticed this as well. I thought I had read somewhere that the displayer were roughly similar.

The LG is definite cooler looking. The IMP seems slightly yellow/pink.

An example using a pure white image in Photoshop is below. IMP is on the right. Note that the LG (right) is being driven by a 2016 MBP.

I had a friend also do a comparison, but with a 4K. He reported a noticeable difference with the IMP seeming more pink. In his case, the LG was hooked up to the IMP.