Scythe - BIG Shuriken 2 Rev. B 45.5 CFM Sleeve Bearing CPU Cooler
Noctua - NH-L9x65 33.8 CFM CPU Cooler
rate how well it could cool the i5-8600k un-overclocked.
1 one being worst.
Cryorig says this.
However, i have a chart that shows at 1600rpm a comparison between some low profile coolers paired with an i5-4690K.
Those are DeltaT temps. So CPU temps without taking in account the ambient temp.
But that doesn't matter, as we want to make a comparison with just numbers, and not the temps in a real world environment, as ambient temperature of the room can change.
Especially if we compare CPU temps on Summer vs Winter times.
So, if i could rate those two low profile CPU coolers i would say.
Scythe - BIG Shuriken 2 Rev. B
Note: keep in mind my rating goes for that particular i5-4690K sample.