Z6 III: Nikon N-RAW bitrate & storage per hour
The Nikon Z6 III records Nikon N-RAW. Maximum sustained write speed: 800 MB/s. Figures per sensor mode and compression level at 24 fps — video only.
Figures at 24 fps. Other frame rates scale linearly — open the calculator to change them.
6K (6048×3402, max 60 fps)
| Compression | Ratio | Bitrate | Data rate | Storage / hour |
|---|---|---|---|---|
| High Quality (HQ) | 2.63:1 | 1,240.7 Mbps | 155.09 MB/s | 558.3 GB |
| Normal | 4.55:1 | 745.9 Mbps | 93.24 MB/s | 335.7 GB |
5.4K (5376×3024, max 60 fps)
| Compression | Ratio | Bitrate | Data rate | Storage / hour |
|---|---|---|---|---|
| High Quality (HQ) | 2.63:1 | 980.3 Mbps | 122.54 MB/s | 441.1 GB |
| Normal | 4.55:1 | 589.4 Mbps | 73.67 MB/s | 265.2 GB |
4K UHD (3840×2160, max 120 fps)
| Compression | Ratio | Bitrate | Data rate | Storage / hour |
|---|---|---|---|---|
| High Quality (HQ) | 2.63:1 | 500.2 Mbps | 62.52 MB/s | 225.1 GB |
| Normal | 4.55:1 | 300.7 Mbps | 37.59 MB/s | 135.3 GB |
Cards and recording time
The Z6 III sustains up to 800 MB/s, so its media has to keep up with the mode you shoot. At the highest rate in the tables above (155 MB/s) the recording times per card are:
| Capacity | Recording time | Cards for 1 hour |
|---|---|---|
| 64 GB | 7 min | 9 |
| 128 GB | 14 min | 5 |
| 256 GB | 28 min | 3 |
| 512 GB | 55 min | 2 |
| 1 TB | 1 h 47 min | 1 |
Offloading a shooting day
90 minutes of takes come to about 837.5 GB. Over USB 3.2 Gen 2 (10 Gbps) that is 16 min for a single copy — double it if you verify with checksums, and multiply by the number of backups.
What hardware it needs
Playing this back in real time means sustaining 155.09 MB/s of reads. One hour of footage is 558.3 GB, and that is what has to travel every time you copy, back up or archive it.
Any card or drive rated below 155 MB/s sustained will drop frames on playback, whatever its peak speed says on the box.
| Interface | Sustained speed | Copying 1 hour |
|---|---|---|
| 1 GbE network (1 Gbps) | 110 MB/s | 1 h 25 min |
| USB 3.2 Gen 1 (5 Gbps) | 400 MB/s | 23 min |
| USB 3.2 Gen 2 (10 Gbps) | 850 MB/s | 11 min |
| Thunderbolt 3 / 4 (40 Gbps) | 2500 MB/s | 4 min |
Times are for a single copy without checksum verification. Verified offload reads back what it wrote, so it takes roughly twice as long.
Related guides
Figures use decimal units (1 GB = 1000 MB), the convention used by drive and camera manufacturers. Computed with the same calculation engine as the Workflow Data Calculator — open it to add audio, streams, backup copies, offload time and storage cost, or to export a PDF report.
Certified Adobe & Blackmagic training and postproduction workflow consulting by Jorge Mochón — jmochon.training