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Samsung 850 Pro 256GB vs SanDisk X400 256GB

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Specification Charts


850 Pro 256GB 256 GB
X400 256GB 256 GB
Difference: 0 (0%)

Random Read

850 Pro 256GB 100000 IOPS
X400 256GB 93500 IOPS
Difference: 6500 (7%)

Random Write

850 Pro 256GB 90000 IOPS
X400 256GB 60000 IOPS
Difference: 30000 (50%)

Sequential Read

850 Pro 256GB 550 MB/sec
X400 256GB 540 MB/sec
Difference: 10 (2%)

Sequential Write

850 Pro 256GB 520 MB/sec
X400 256GB 520 MB/sec
Difference: 0 (0%)


850 Pro 256GB 150 TB
X400 256GB 80 TB
Difference: 70 (88%)


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Model 850 Pro 256GB X400 256GB
Manufacturer Samsung SanDisk
NAND Samsung 2nd Gen 86Gbit 40nm MLC V-NAND TLC NAND
Form Factor 2.5" 2.5"
Capacity 256 GB 256 GB
Cache 512 MB (N/A) MB
Sequential Read 550 MB/s 540 MB/s
Sequential Write 520 MB/s 520 MB/s
Random Read 100000 IOPS 93500 IOPS
Random Write 90000 IOPS 60000 IOPS
Interface SATA III 6Gb/s SATA III 6Gb/s
Controller Samsung 3-core MEX controller Marvell 88SS1074
Date Released 2014 2016
Endurance 150 TB 80 TB
Notes 10 years limited warranty AES 256-bit Full Disk Encryption (FDE) TCG/Opal v2.0, Encrypted Drive (IEEE1667) Warranty 5 years

Price Comparison

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850 Pro 256GB

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X400 256GB

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