What is likely to be the difference in render times between Poser 10 and Poser Pro 2014 (64 bit)?

I do not contemplate rendering large/complex scenes

System:
Win 7 64 bit
Core I7 processor
6 G ram
1/2 T SSD

I am aware that this is difficult, perhaps impossible, to answer with any degree of assurrance. I am looking for:
probably/ possibly and dramatic/significant/noticible/marginal
based on some user impressions

My apologies if this has been discussed elsewhere, I did search.

Thanks