When Andrei Frumusanu left Anandtech for Qualcomm, I'm sure he was paid much more for engineering chips than he was for writing about them, but his insight into the various core designs released for desktops and mobile was head and shoulders above anything I've seen since.
replyIt's a shame that I can't even find a publication that runs and publishes the SPEC benchmarks on new core designs now that he is gone, despite SPEC having been the gold standard of performance comparison between dissimilar cores for decades.
There are still places that benchmark, but mostly for commercial apps like Puget Systems in the earlier post. Phoronix can also be useful as well for benching open source stuff.
replyI wouldn't put much trust in well-known benchmark suites as in many cases proprietary compilers, a huge amount of effort was put into Goodhart's law optimizing to the exact needs of the benchmark.