This is all alluded to in the article and the macrumors post that the article is based upon, here are some quotes:
> "Sure, that doesn’t mean the A11 Bionic can do all the things a desktop CPU does."
> "Though the iPhone X and the iPhone 8 offer impressive Geekbench scores, how that translates to real world performance remains to be seen."
There's no question that the iPhone chips deliver amazing performance, but there's a reason people still lug Macbooks around.
Geekbench always seems like an odd benchmark - the variability between runs alone is kind of odd. If I could run a compiler on an iPhone, for example, would I really see similar performance to my MBP?