The biggest consumer SSDs you can buy: 8TB NVMe from Samsung and WD, with the cost math against two 4TB drives, hard-drive alternatives, and who actually needs 8TB.
Cheapest 8TB: Samsung 9100 Pro 8TB — $1069.99 ($133.75/TB)
~44% cheaper: two 4TB drives = $599.98
| $/TB | $/GB | Price | Capacity | Interface | Gen | Read | Write | NAND | Warranty | Cond. | Product |
|---|---|---|---|---|---|---|---|---|---|---|---|
| $133.75 | $0.134 | $1069.99 | 8 TB | M.2 NVMe | Gen 5 | 14,800 MB/s | 13,000 MB/s | TLC | 5 yr | New | Samsung 9100 Pro 8TB |
| $135.00 | $0.135 | $1079.99 | 8 TB | M.2 NVMe | Gen 4 | 7,300 MB/s | 6,300 MB/s | TLC | 5 yr | New | WD Black SN850X 8TB |
8TB is the ceiling of the consumer SSD market in June 2026, and the choice is narrow: high-end NVMe from Samsung and WD. The cheapest 8TB here is the Samsung 9100 Pro 8TB at $1069.99 ($133.75/TB). At this capacity you pay a steep premium per terabyte versus 4TB — you are buying density into a single M.2 slot, not value.
If your motherboard has a spare M.2 slot, two 4TB drives almost always beat one 8TB drive on price. The numbers, using the cheapest options tracked here:
| Option | Drive(s) | Total | $/TB | Trade-off |
|---|---|---|---|---|
| 1 × 8TB NVMe | Samsung 9100 Pro 8TB | $1069.99 | $133.75 | One M.2 slot, max density |
| 2 × 4TB NVMe | 2× Silicon Power UD90 4TB | $599.98 | $75.00 | Needs 2 slots — ~44% cheaper |
| 8TB HDD | e.g. WD/Seagate 8TB | ~$120 | ~$15 | Cold storage, slow, mechanical |
Two 4TB drives deliver the same 8TB for $599.98 versus $1069.99 — a saving of about $470 (~44%) — at roughly half the $/TB, and you can keep them as separate volumes or in RAID. Buy the single 8TB only if you are out of M.2 slots or need one contiguous volume.
4K/8K video editors who want a single scratch + media drive, large Steam libraries on one volume, local AI model storage, and small-form-factor or laptop builds with just one M.2 slot. Everyone else is better served by 2×4TB, or by a hard drive for bulk cold storage.
For storage where speed is secondary, an 8TB hard drive runs about $15/TB (~$120 for 8TB) — roughly one-ninth the cost per TB of an 8TB NVMe. An external 8TB SSD is slower over USB but avoids opening the case. The practical 8TB-on-a-budget answer for most people is one fast 2–4TB NVMe for active files plus a large HDD for archives.
If 8TB is more than you truly need, the best-value 4TB NVMe drives are the Silicon Power UD90 4TB ($299.99, $75.00/TB) and the Crucial T500 4TB ($319.99, $80.00/TB) — both offer far better cost-per-TB than any 8TB drive. See all 4TB NVMe prices.
Not for consumers as of June 2026. Crucial’s NVMe lineup tops out at 4TB (T500, T710) and Kingston’s NV3 at 2TB. The only mainstream 8TB NVMe drives are the Samsung 9100 Pro 8TB and WD Black SN850X 8TB above.