@goroots The RockPro64 provides excellent performance in PSP, N64 and Dreamcast. As Bkg2k wrote above - its (...) "a more powerfull board that can run the PSP and the N64 at full speed".
The Rock64 is approximately on par with the RPI 3, so scale your expectations accordingly.
Just a heads up to those who wish to help test and offer feedback on here.
The RockPro64 image has been labeled release because 1) it tests very well - big performance improvements over beta in Dreamcast, PSP and Nintendo 64 (probably best performance on ARM); 2) We've not had any major complaints, except for some PCIe incompatibility of external NVMe SSDs and other hardware, from many people who tested.
The Rock64 image stays in Beta due to some lingering issues and some missing features (e.g. setting resolution from recalbox config for RA cores, reicast, Mupen and ppsspp) - nothing major.