I think what he meant is even with exactly the same tech specs.... one could be more powerful than the other.... or even pushing it further one being more powerful than the other on specs and still be weaker on the result.... we see that all the time in tech today but also in mechanic and other fields.... where on the paper something is/looks better on paper but when it comes to real performance it doesn't outcome the same because resources are handled and exploited differently.....
the cell for instance was a great example of that.... here even with similar architectures the pure spec comparison might not output the expected theorical results.... the little tweaks each did and the OSs and different code in the box might allow a better use of resources or on the opposite generate less loss of resources than the other which could dwarf the theorical spec sheet benefit of one over the other....
