After a brief delay, AMD’s Ryzen 9000 finally has hit shelves—but to everyone’s surprise, the first processors come with surprising caveats. Despite offering plenty to like, the $279 Ryzen 5 9600X and $359 Ryzen 7 9700X also sport uneven performance improvements. The reasons for those benchmark results are nuanced, however. We at PCWorld have even delayed the release of our review to better tease out those fine-grain details. (You can watch us explain why in this YouTube video, where we also discuss our initial results in-depth.) But for those of you at home, wondering if Team Red’s latest sil…