Western Digital WD_BLACK SN850X 8TB
8TB · M.2 2280 · PCIe 4.0 x4
Specifications
Yes
DRAM cache
7200 MB/s
Sequential read
6600 MB/s
Sequential write
4800 TBW
Endurance
Family guide
WD_BLACK NVMe SSDs| SN770 | SN850X This model | SN850P | SN7100 | SN8100 | |
|---|---|---|---|---|---|
| Released | 2022 | 2022 | 2023 | 2024 | 2025 |
| Interface | Not available | PCIe 4.0 x4 | PCIe 4.0 x4 | Not available | PCIe 5.0 x4 |
| Read | Not available | 7200 MB/s | 7200 MB/s | Not available | 14900 MB/s |
| Write | Not available | 6600 MB/s | 6600 MB/s | Not available | 14000 MB/s |
| Endurance | Not available | 4800 TBW | 4800 TBW | Not available | 4800 TBW |
| Summary | DRAM-less: it borrows system memory (HMB) instead, which the PS5 doesn't support, so console speeds may fall short. | WD_BLACK's flagship PCIe 4.0 drive, with a DRAM cache that the SN770 and SN7100 lack. | Same drive as the SN850X, sold only with a heatsink and licensed for the PS5. | DRAM-less successor to the SN770, with newer TLC flash and better power efficiency. | Has a DRAM cache and draws little power for its speed, but can still run hot without a heatsink. |
Capacity grid
| 250GB | 500GB | 1TB | 2TB | 4TB | 8TB | |
|---|---|---|---|---|---|---|
| SN770 | Out of stock | Out of stock | $399.95 | $655.72 | Not available | Not available |
| SN850X | Not available | Not available | $344.01 | $599.81 | $1,289.95 | $3,633.64 This model |
| SN850P | Not available | Not available | $379 | $749.95 | $1,000 | Out of stock |
| SN7100 | Not available | $271.55 | $299 | $485.40 | $1,290.48 | Not available |
| SN8100 | Not available | Not available | $433.28 | $799 | $1,299 | Out of stock |
Price history
$6,900$5,550$4,200$2,850$1,500
22 Apr06 Jun22 Jul06 Sept22 Oct
Price history excludes Amazon sources
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Listings
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WD_Black 8TB SN850X NVMe Internal Gaming SSD Solid State Drive - Gen4 PCIe, M.2 2280, Up to 7,200 MB/s - WDS800T2X0E Amazon AU $3,633.64 Western Digital WD BLACK SN850X NVMe SSD - 8TB Without Heatsink M.2 2280 Ebay AU $6,779.00 Western Digital WDS800T2X0E-EC SN850X 8TB NVMe PCIe Gen4 x4 (Read up to 7200MB/s Write Up to 6600MB/s) Gaming PC with Internal Digital WD Black M.2 SSD Out of stock Amazon AU — Western Digital WD Black SN850X 8TB Gen4 NVMe SSD for PC, PS5- 7200MB/s Out of stock Ebay AU — Western Digital WD BLACK SN850X 8TB PCIe Gen4 M.2 NVMe SSD Heatsink WDS800T2XHE Out of stock Ebay AU — Western Digital WD Black SN850X 8TB Gen4 NVMe SSD Heatsink for PC, PS5- 7200MB/s Out of stock Ebay AU — WD_Black 8TB SN850X NVMe Internal Gaming Solid State Drive with Heatsink - Works with PlayStation 5, Gen4 PCIe, M.2 2280, Up to 7,200 MB/s - WDS800T2XHE Out of stock Amazon AU — WD _BLACK SN850X NVMe SSD 8TB with Heatsink Out of stock Amazon AU —