This my November 2018 Build and its my first custom water loop. I've tweaked my 8700k for best temperatures @5GHz.
8700k 5GHz @1,35V with AiO: 85°C Prime (used der8auer Tutorial)
8700k 5GHz @1,35V with AiO delidded: 65°C Prime
8700k 5GHz @1,26V with AiO delidded: 60°C Prime (undervolted)
8700k 5GHz @1,26V with Custom Water Loop delidded: 50°C Prime
So -35°C with same performance is pretty neat i think :D
GTX 2080 in combination with the 8700k is great for 1440p gaming with max graphic settings. (Battlefield V 1440p Ultra Preset 120fps in average)
The Desk is selfmade... 220mm x 60mm tabletop with 2x IKEA ALEX
Now im waiting for EK Water Blocks GPU Block.