Nikon Z9 vs Z8 — Storage & Bitrate Comparison
For storage planning, the Z9 and Z8 are functionally identical: same 8.3K N-RAW pipeline, same ProRes RAW HQ tables, same H.265 modes. Every bitrate matches. The real difference is one slot — the Z9 has two CFexpress Type B, the Z8 has one CFexpress Type B plus one SD UHS-II.
Storage at a Glance
| Nikon Z9 | Nikon Z8 | |
|---|---|---|
| Peak bitrate (8.3K) | 5780 Mbps (N-RAW HQ 60p) | 5780 Mbps (N-RAW HQ 60p) |
| Internal RAW codec | N-RAW 12-bit + ProRes RAW HQ | N-RAW 12-bit + ProRes RAW HQ |
| Card slots | Dual CFexpress Type B | 1× CFexpress Type B + 1× SD UHS-II |
| Backup / overflow recording | Yes — second CFexpress Type B | Limited — only H.265 fits on SD slot |
| Storage per hour at 8.3K N-RAW HQ 60p | 2.60 TB | 2.60 TB |
| Storage per hour at 8.3K N-RAW HQ 24p | 1.25 TB | 1.25 TB |
| Storage per hour at 4K H.265 60p | 153 GB | 153 GB |
| Body weight (with battery) | 1340 g | 910 g |
| Integrated vertical grip | Yes | No (optional MB-N12) |
Bitrate-by-Bitrate Comparison
Identical recording pipeline. Same firmware-controlled encoder, same bitrate tables. The Z9 has been around two years longer, but firmware updates have kept the two bodies in lockstep.
| Setting | Z9 | Z8 |
|---|---|---|
| N-RAW HQ 8.3K 60p | 5780 Mbps | 5780 Mbps |
| N-RAW HQ 8.3K 24p | 2780 Mbps | 2780 Mbps |
| N-RAW Normal 8.3K 60p | 3470 Mbps | 3470 Mbps |
| N-RAW Normal 8.3K 24p | 1390 Mbps | 1390 Mbps |
| ProRes RAW HQ 8.3K 24p | 1429 Mbps | 1429 Mbps |
| H.265 10-bit 8K 30p | 400 Mbps | 400 Mbps |
| H.265 10-bit 4K 60p | 340 Mbps | 340 Mbps |
| H.265 10-bit 4K 120p | 400 Mbps | 400 Mbps |
The Slot Difference, in Practice
This is the only real storage question between the two bodies. The Z9's dual CFexpress Type B configuration lets you mirror to slot 2 (backup recording) or roll over (overflow recording) without changing media. On the Z8, slot 2 is SD UHS-II — fast enough for H.265, but it cannot sustain N-RAW or ProRes RAW HQ writes.
For 8.3K N-RAW HQ at 60p (5780 Mbps), one 660 GB CFexpress Type B card holds about 15 minutes. On the Z9, you can mirror or overflow to a second 660 GB card. On the Z8, you swap cards mid-shoot or run out at 15 minutes per card.
Which Should You Pick?
Z9 — pick if you need long-form continuous N-RAW recording, backup-to-slot-2 redundancy, or work in environments where stopping to swap cards is a problem (interviews, broadcast, run-and-gun docs). The integrated grip and second CFexpress slot pay off here.
Z8 — pick if you need a smaller, lighter body for gimbal, rig, or travel work, and accept card swaps on long-form N-RAW shoots. Identical recording capability per shot.
For pure per-hour storage at the same settings, they're interchangeable. Plan capacity the same way for both; plan workflow around the slot count.
Frequently Asked Questions
Do the Nikon Z9 and Z8 use the same memory cards?
Partly. Z9: dual CFexpress Type B. Z8: one CFexpress Type B + one SD UHS-II. CFexpress Type B is required for sustained N-RAW writes on both bodies — the Z8's SD slot is for H.265, JPEGs, and overflow only.
Which records higher bitrates: Z9 or Z8?
Neither. Same 8.3K N-RAW pipeline, same ProRes RAW HQ tables, same H.265 modes. Every bitrate matches across both bodies. Peak is 5780 Mbps for N-RAW HQ 8.3K 60p on both.
Which needs more cards for the same shoot?
Neither — identical per-hour storage at matching settings. The Z9 wins on continuous-record duration (because of the second CFexpress Type B slot), not capacity efficiency.
What's the Z8's advantage over Z9 for storage workflows?
None on raw bitrate — same tables. The Z8 wins on form factor, weight, and price. It loses backup-to-slot-2 redundancy for N-RAW, which matters for long-form work.