How is the speed? Replacement for moto x 1st gen?

Need to get a new phone as my current one (moto x 1st gen, which was amazing and faster and more responsive than S4) is starting to have some issues.

I'm considering the moto G 3rd gen but don't want anything less than my moto x (1st gen) perfomance, otherwise I will probably just go online and get another moto x (1st gen)

moto x 1st gen
http://www.notebookcheck.net/Qualcom...C.86868.0.html

moto g 3rd gen/2015
http://www.notebookcheck.net/Qualcom....111656.0.html

Comparison
http://system-on-a-chip.specout.com/...on-410-MSM8916

It looks like it's slower than the moto x 1st gen. But does the fact that it has 4 cores as oppose to 2 cores change things in performance?
Please help me understand and if I should get the another moto x 1st gen or get the moto g 3rd gen/2015

thanks