Written analysis
WD_BLACK 2TB SN850P at a glance
The WD_BLACK 2TB SN850P is a 2000 GB M.2 2280 SSD using PCIe 4.0 x4, NVMe 1.4. Cache is listed as Host-Memory-Buffer (HMB).
Rated sequential throughput is 7300 MB/s read and 6300 MB/s write. Random throughput is 1200K read IOPS and 1100K write IOPS. The calculated specification score is 71.2.
Best fit: General storage workloads where compatibility and price matter more than peak transfer rates.
Endurance and thermals
Rated endurance is 1200 TBW, or approximately 600 TBW per TB of capacity. The listed warranty is 5 years.
Current value
At $395, the drive costs $197.48 per TB. Performance / price is 27.1 and capacity value is 54.1. Compare these values with nearby drives below; interface generation and headline speed alone do not determine value.
Discussion
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