> AW do you have any links for benchmarks of the P5 series chips compared to G5?

Unfortunately none apart from the artificial Dhrystone ones.

https://morph.zone/modules/newbb_plus/viewtopic.php?forum=3&topic_id=7001&start=743

> I understand non are probably out yet for the X5000, but other sources?

As there're MorphOS developers and betatesters with X5000 at hand, I would expect them to publish MorphOS-centric benchmark figures anytime soon :-)