User Benchmark is not a reliable source, as evidenced here.
I wouldn’t use them at all, regardless of how much money they throw at Google to get to the top of search results. I don’t know how those two GPU’s actually compare off hand, but let’s pretend the GRE is the better card for the sake of argument. You should never only consider one review source. You should always look at multiple reviews to get multiple opinions and info that another source may omit. Gamers Nexus is probably the most respected review source, but I wouldn’t even take their word as gospel to the exclusion of other sources. And if you are considering a component for one task, like a GPU meant for simming, then additionally look for task specific benchmarking. A lot of reviewers do not use the sim, but you can still find plenty of sim specific videos of different GPU’s in use to make your own comparisons.