That benchmark excludes the 3600X which is so close to the 3700X for gaming. So from a gaming perspective you can compare it to a prior gen 6 core 12 thread.
In relation to the rest of the 5000 series CPU's it's definitely being hurt by the lack of L3 cache. But it's 45/65W TDP rating is also a major hindrance. I'm not suggesting it will fare any better than the other Gen 3 CPU's with all-core overclocks (I hope we find out, though) but I do wonder how it will perform under a properly tweaked PBO overclock. It will never be a 5800X but it should overcome TDP limitations at least and let it perform much better in productivity.
But productivity is, arguably, not it's
raison d'tre anyway, and it's not really a NUC-only product. A lot of people are clamoring for throw-away cheap entry level gaming GPU's for their builds so they can drop in a premium GPU when the prices are reasonable again. This is perfect for that since a 3700X is more than good enough for quality gaming, even if that's the only comparison point, and it's a good deal cheaper than a 5600X/1030 combo. If you can find either...which brings up the still to be answered question of availability of this part too.