Q27G2S/EU vs XRGB27WQ comparison

[angrypidgeon]

Hello
I narrowed my search to these two monitors and need some advice
Both are 27", 1440p, IPS, G-sync compatible
Differences:

1. Is there a big difference? XRGB27WQ boasts to be natively 10 bit Q27G2S/EU is only 8 bit + FRC
   1. https://www.displayspecifications.com/en/model/afa328f0
   2. https://www.awd-it.co.uk/xrgb27wq-27-1440p-ips-165hz-freesync-g-sync-dp-hdmi-rgb-gaming-monitor.html
   3. https://www.amazon.co.uk/XRGB27WQ-F...rs&sprefix=xrgb27wq+,computers,84&sr=1-1&th=1
2. XRGB27WQ is 5ms, Q27G2S/EU is 1ms. 5ms seems big as in able to create ghosting
3. XRGB27WQ boasts that one of its DP ports is 1.4 which is needed. Does it really? Q27G2S/EU claims a DP 1.4 as well. Do I need the extra HDMI or DP port each has?
4. Are XRGB27WQ specs accurate or false? Seems too good for its price
5. Which one is best for gaming?