Well, he does at least provide the pressure drop measured for the different test results.
IF you ignore the heat put into the system by the pump, there is some basis for comparing the numbers.
The way I see it, the RBX performs about the same as the Swiftech MCW5002 IF you provide seven times the pressure drop. Not good, especially considering the prevalence of GPU blocks these days.
It looks to me like, the RBX is not a contender.
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