XBurst 2 was not canceled, where did you get that idea?
Then its on hold forever ? Because Ingenic were working on a MIPS64 sucessor back in 2013~2014 and we never heard of it.
Unless the M200 is Xburst 2 ? Do you know what happened to that ?
Because apart from the M200, we got nothing from Ingenic beyond the JZ4780. I even looked at their website and that's all i could find.
The M200 is dual-core 1.2 GHz + 300 MHz, I guess that's where the 1.5 GHz figure comes from.
Ah, that makes sense. Kind of like how they advertise the RS-97 with its Ingenic JZ4760 being dual core, even though it is just the main CPU + VPU.
Conclusion. A lot needs to be optimized yet.
It could be improved. PCSX4ALL part5 by senquack will make use of the MXU. We can expect an improvement of 10% at least.
As for PocketSNES, i had great results with PGO'ing the executable so this is something that needs to be done on the GCW0/RG350 version as well. I could do it but i'm still waiting for the RG350 team to send me a dev unit.
Some people already got their RG-350. (or are about to)