I’ve got the 8c nMP with dual D700 and 64gb ram.
I can play back 5k Epic Footage at 8:1 compression in Premiere at 1/2 perfectly smoothly. Actually a tiny bit better than in FCP X. For actual editing and a ProRes like feel in responsiveness I have to set playback resolution to 1/4, which is perfectly fine, cause it still looks basically like 1080p Footage.
I made the observation that there’s a difference in playback performance regarding the compression of the footage. 8:1 plays back better than 4:1. I wonder why that is! Already have a thread at reduser going, but nobody could give me a proper answer so far.
I always thought less compression = less workload on the system. My Lacie Little Big Disk 2 can’t be the bottleneck.