A D300/M43 fellow Nikonian and close friend, who lately has shifted some increasing allegiance toward the Olympus/Panasonic/Ricoh M43 camp, and is trying to persuade me away from my move to a D610, suggests that I may be unhappy with my desktop PC's ability to timely process the D610-sized NEF files and that I should ask here if anyone would be willing to email me D600 or D610 RAW files of average size so that I can test-run them through my post-processing workflow to sample likely processing time. I think it's in some ways a logical request but it also seems to be not only imposing on other Nikonians but even a bit rude.
Is this as both logical and unreasonable as I think it may be?
My D600 NEFs run in the 25-30Meg range -- far too large to e-mail! If you don't know someone locally who owns a D600/610, you might consider taking a data card to your local camera store, shooting some sample pix there, and taking the card home to process them. It will also give you some experience with the body, so you can see if it's to your liking. - TJ
From my limited experience, I would say it would not slow your process. I compared processing times with my previous D700, D7000, and D600. The D7000 files really slowed down my process and there was not much difference between the D700 and D600.
I use Lightroom on an older iMac (Early 2009, I believe) and find no real problem with either my D600 or my OM-D E-M5 files. In fact, it seems to take LR more time to construct the 1:1 previews from the 16Mp ORF files than the 24Mp D600 NEFs. If not more, then certainly not relatively less.
Edited to add: DPReview usually makes downloads of raw files available as part of their reviews. This would be a very good resource for your research.