FWIW, I am the lucky owner of both, until my 47 sells on here.
A few replies have already correctly stated how accurate the 6.5x47 is and I FAC confirm that. I’ve found it almost insanely accurate. In my experience it’s best with 120/123 grain bullets and IMHO these aren’t really suitable for 1000 yards.
Where the Creedmoor scores (no pun intended) is the ease with which it shoots at longer ranges.
I have a Creedmoor smithed by Baldy and it just walks 900 and 1000 yards. I’ve not tried it against 7mm canons but that’s not what it was made for.