You can look at benchmarks by googling 'H7 Quad Lumi benchmarks' or the list for relative performance. The actual temperature results you might experience would rely on several factors including ambient temps and system airflow / specs.
Here are some examples:
https://www.techpowerup.com/reviews/CRYORIG/H7_Quad_Lumi/6.html
https://www.kitguru.net/components/cooling/dominic-moass/cryorig-h7-quad-lumi-rgb-air-cooler-review/5/
https://www.nikktech.com/main/articles/pc-hardware/cpu-cooling/cpu-air-coolers/9359-cryorig-h7-quad-lumi-cpu-cooler-review?showall=&start=6
The R1 Universal is the same as the R1 Ultimate but the front fan is slimmer for better ram clearance at the cost of slightly worse performance. That being said, it's probably overkill for the 2600. The H7 Quad Lumi is already plenty for oc'ing.
Why are you looking at these coolers in particular?
