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Western Digital WD Blue SN550 NVMe SSD 250GB vs SanDisk X400 256GB

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Specification Charts

Capacity

X400 256GB 256 GB
WD Blue SN550 NVMe SSD 250GB 250 GB
Difference: 6 (2%)

Random Read

WD Blue SN550 NVMe SSD 250GB 170000 IOPS
X400 256GB 93500 IOPS
Difference: 76500 (82%)

Random Write

WD Blue SN550 NVMe SSD 250GB 135000 IOPS
X400 256GB 60000 IOPS
Difference: 75000 (125%)

Sequential Read

WD Blue SN550 NVMe SSD 250GB 2400 MB/sec
X400 256GB 540 MB/sec
Difference: 1860 (344%)

Sequential Write

WD Blue SN550 NVMe SSD 250GB 950 MB/sec
X400 256GB 520 MB/sec
Difference: 430 (83%)

Endurance

WD Blue SN550 NVMe SSD 250GB 150 TB
X400 256GB 80 TB
Difference: 70 (88%)

Specifications

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Model WD Blue SN550 NVMe SSD 250GB X400 256GB
Manufacturer Western Digital SanDisk
NAND SanDisk 96L TLC TLC NAND
Form Factor M.2 (2280) 2.5"
Capacity 250 GB 256 GB
Cache N/A MB (N/A) MB
Sequential Read 2400 MB/s 540 MB/s
Sequential Write 950 MB/s 520 MB/s
Random Read 170000 IOPS 93500 IOPS
Random Write 135000 IOPS 60000 IOPS
Interface NVMe 1.4 SATA III 6Gb/s
Controller WD Architecture Marvell 88SS1074
Date Released 2019 2016
Endurance 150 TB 80 TB
Notes 5-Year Warranty Warranty 5 years

Price Comparison

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WD Blue SN550 NVMe SSD 250GB

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X400 256GB

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