Any F5X+ vs F5X GPS comparison?

Hi!

Has anybody experience regarding GPS accuracy with F5X+ and old F5X? Is there any difference?
Garmins says (i saw it somewhere), that F5X+ has a new GPS chipset. But beta fw for F5X has the same GPS FW (at least the version is the same), so it doesn't look like a new chipset for F5X+.
That would be pretty bad, because my hope was F5X+ will be better at this point :(