Benchmarks: CPU
Running with a Ryzen 9 3950X at the helm automatically means superlative multi-thread performance. The comparison CCL machine is a couple of hundred pounds cheaper but is mullered in the two final benchmarks: it's less than half the speed of the PC Specialist, whose chip runs at an all-core 4.025GHz thanks to the cooling.
That means while the chip is super-fast, the fact that it's not overclocked when under a solid watercooling kit shows that PC Specialist plays it safe, perhaps too safe.