What are the compelling reasons to favour Ryzen over intel? Genuine question, I don't keep up to date with CPUs so have no idea what to consider.
If you have to build a PC today, the argument could be made that AMD is currently the better choice since the current Ryzens and latest AMD motherboard chipsets (B550, X570) support PCIe 4.0. SSD I/O speeds on PCIe 4.0 are far superior than their Gen3 predecessors and disk access times is one of the major bottlenecks during regular everyday use.
This is a great example of why basing purchase decisions on one narrow benchmark (like the moronic single-core vs. multi-core Geekbench comparisons) is crushingly stupid. Fast single-core CPU performance matters far less when you are trying to write data to a disk. Some of the savvier PC hardware testers dislike testing SSD performance on empty devices because they know that's not a real-world scenario.
In the end, don't fixate on CPUs. Motherboard chipsets are more impactful in the long run. If one CPU is 10% faster on Geekbench single-core than another, will you see it surfing the 'net, typing out e-mails, running Photoshop, etc.?
NO.
If you care about noise, focusing on fans will be more beneficial than CPU Geekbench scores but not fan RPMs. A faster spinning fan isn't necessarily better. A larger, slower fan can often move more air than a smaller, faster fan -- with less noise.
Measurements like airflow -- CFM (cubic feet per minute) or m3/h (cubic meters per hour), air pressure, and noise, dB(A) at maximum speed.