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ADATA Ultimate SU800 256GB vs Western Digital WD Blue SN550 NVMe SSD 500GB

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Specification Charts

Capacity

WD Blue SN550 NVMe SSD 500GB 500 GB
Ultimate SU800 256GB 256 GB
Difference: 244 (95%)

Random Read

WD Blue SN550 NVMe SSD 500GB 300000 IOPS
Ultimate SU800 256GB 80000 IOPS
Difference: 220000 (275%)

Random Write

WD Blue SN550 NVMe SSD 500GB 240000 IOPS
Ultimate SU800 256GB 85000 IOPS
Difference: 155000 (182%)

Sequential Read

WD Blue SN550 NVMe SSD 500GB 2400 MB/sec
Ultimate SU800 256GB 560 MB/sec
Difference: 1840 (329%)

Sequential Write

WD Blue SN550 NVMe SSD 500GB 1750 MB/sec
Ultimate SU800 256GB 520 MB/sec
Difference: 1230 (237%)

Endurance

WD Blue SN550 NVMe SSD 500GB 300 TB
Ultimate SU800 256GB 200 TB
Difference: 100 (50%)

Specifications

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Model Ultimate SU800 256GB WD Blue SN550 NVMe SSD 500GB
Manufacturer ADATA Western Digital
NAND Micron 32-layer 384Gb 3D TLC NAND SanDisk 96L TLC
Form Factor 2.5" SATA III M.2 (2280)
Capacity 256 GB 500 GB
Cache N/A MB (N/A) MB
Sequential Read 560 MB/s 2400 MB/s
Sequential Write 520 MB/s 1750 MB/s
Random Read 80000 IOPS 300000 IOPS
Random Write 85000 IOPS 240000 IOPS
Interface SATA III NVMe 1.4
Controller Silicon Motion SM2258 WD Architecture
Date Released 2017 2019
Endurance 200 TB 300 TB
Notes 3-Year Warranty 5-Year Warranty

Price Comparison

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Ultimate SU800 256GB

Amazon.com

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WD Blue SN550 NVMe SSD 500GB

Amazon.com

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