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Samsung 850 Pro 128GB vs SanDisk X400 256GB

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Specification Charts

Capacity

X400 256GB 256 GB
850 Pro 128GB 128 GB
Difference: 128 (100%)

Random Read

850 Pro 128GB 100000 IOPS
X400 256GB 93500 IOPS
Difference: 6500 (7%)

Random Write

850 Pro 128GB 90000 IOPS
X400 256GB 60000 IOPS
Difference: 30000 (50%)

Sequential Read

850 Pro 128GB 550 MB/sec
X400 256GB 540 MB/sec
Difference: 10 (2%)

Sequential Write

X400 256GB 520 MB/sec
850 Pro 128GB 470 MB/sec
Difference: 50 (11%)

Endurance

850 Pro 128GB 150 TB
X400 256GB 80 TB
Difference: 70 (88%)

Price Comparison

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850 Pro 128GB

Amazon.com

X400 256GB

Amazon.com

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model 850 Pro 128GB X400 256GB
Manufacturer Samsung SanDisk
NAND Samsung 2nd Gen 86Gbit 40nm MLC V-NAND TLC NAND
Form Factor 2.5" 2.5"
Capacity 128 GB 256 GB
Cache 256 MB (N/A) MB
Sequential Read 550 MB/s 540 MB/s
Sequential Write 470 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
Display Prices

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850 Pro 128GB

Amazon.com

X400 256GB

Amazon.com

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.