Is this true abuth th roland fantom xr?

Is it true that most of patches on the fantom x comes from the xv-5080?

I think that they use the same sound engine, not really the same patches
I have a Fantom S and when I checked out the Fantom X it had some of the same patches but alot of new ones

It's supposed to be a new sound engine. I wouldn't be surprised if some of the sounds are similar though. But the upgrade is there. Even ffrom the FS to FX, there is an improvement in sounds.