WD Black SN850 8 TB

Measured performance for WD Black SN850 8 TB across 1 verified WhatFPS runs. Every number is measured in our benchmark suite — not estimated, not self-reported. Drive score (the drive's own performance: sequential read + 4K IOPS): 14,297 on average over the best run per rig, best run 14,297 — #10 of 76 measured system drives. Most often paired with 13th Gen Intel(R) Core(TM) i7-13700K.

WD Black SN850 8 TB — subtests

  • Sequential read (1 MB blocks): 4,129 MB/s
  • 4K IOPS: 17,375
  • 4K latency, median: 49 µs — lower is better
  • 4K latency, p99: 119 µs

Specifications

  • Manufacturer: WD
  • Series: Black SN850
  • Type: NVMe SSD
  • Size: 8 TB
  • Model string (seen): WD_BLACK SN850P for PS5 8000GB

What the numbers mean

The GAMING score is a geometric mean of GPU (63 %), CPU (30 %), RAM (5 %) and drive (2 %) — a weak part cannot hide behind a strong one. The drive score is a geometric mean of sequential read (1 MB blocks) and random 4K read (IOPS), measured unbuffered on a 256 MB temp file on the system drive. Only the system drive is measured. The same model can differ between rigs: PCIe generation, fill level and driver all matter. Every run is HMAC-signed in the app and scored on the server. The full methodology is open at https://whatfps.com/metodik

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