Compare any two Solid State Drives:


Samsung 850 Pro 1TB vs SanDisk X400 128GB

Display Graphs

Hide Graphs

Specification Charts


850 Pro 1TB 1024 GB
X400 128GB 128 GB
Difference: 896 (700%)

Random Read

850 Pro 1TB 100000 IOPS
X400 128GB 93500 IOPS
Difference: 6500 (7%)

Random Write

850 Pro 1TB 90000 IOPS
X400 128GB 60000 IOPS
Difference: 30000 (50%)

Sequential Read

850 Pro 1TB 550 MB/sec
X400 128GB 540 MB/sec
Difference: 10 (2%)

Sequential Write

850 Pro 1TB 520 MB/sec
X400 128GB 340 MB/sec
Difference: 180 (53%)


850 Pro 1TB 300 TB
X400 128GB 72 TB
Difference: 228 (317%)

Price Comparison

Display Prices

Hide Prices

850 Pro 1TB

X400 128GB

Please note that the price comparisons are based on search keywords - sometimes it might show ssds 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.


Display Specifications

Hide Specifications

Model 850 Pro 1TB X400 128GB
Manufacturer Samsung SanDisk
NAND Samsung 2nd Gen 86Gbit 40nm MLC V-NAND TLC NAND
Form Factor 2.5" 2.5"
Capacity 1024 GB 128 GB
Cache 1024 MB (N/A) MB
Sequential Read 550 MB/s 540 MB/s
Sequential Write 520 MB/s 340 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 300 TB 72 TB
Notes 10 years limited warranty AES 256-bit Full Disk Encryption (FDE) TCG/Opal v2.0, Encrypted Drive (IEEE1667) Warranty 5 years