For productivity no. For gaming yes. I have 16gb of 3000MHz DDR4 and even running a 1080 Ti at 4k with TONS of background processes open I never see above 12gb system usage total. 16gb is the new 8gb.
I chew 16 gb up for a snack............
The processor was more powerful than the ram i could get on mb using q6600 lga775 16gb was max ram and i used to run out all the time