Finch2

Hello Everyone, I am trying to plan an 8 camera system with Hikvision products. DS-7616NI-E2/16P NVR with DS-2CD2632F-IS and DS-2CD2642FWD-IZS cameras. The specs for the NVR say 16-ch@4CIF, 12-ch@720P, 6-ch@1080P I think this means: 1 - 11 cameras at 1080p, 12-15 cameras at 720p, and 16 cameras at 4CIF. I assume that would mean that I could have 8 cameras at 1080p, but the frame rate is not specified. Can anyone tell me if I use 8 cameras at 1080p what maximum frame rate I could use? TIA