Compare any two Solid State Drives:


SanDisk Ultra II 120GB vs X400 1TB

Display Graphs

Hide Graphs

Specification Charts


X400 1TB 1024 GB
Ultra II 120GB 120 GB
Difference: 904 (753%)

Random Read

X400 1TB 95000 IOPS
Ultra II 120GB 81000 IOPS
Difference: 14000 (17%)

Random Write

Ultra II 120GB 80000 IOPS
X400 1TB 75000 IOPS
Difference: 5000 (7%)

Sequential Read

Ultra II 120GB 550 MB/sec
X400 1TB 545 MB/sec
Difference: 5 (1%)

Sequential Write

X400 1TB 520 MB/sec
Ultra II 120GB 500 MB/sec
Difference: 20 (4%)


X400 1TB 320 TB
Ultra II 120GB 54 TB
Difference: 266 (493%)

Price Comparison

Display Prices

Hide Prices

Ultra II 120GB

X400 1TB

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 Ultra II 120GB X400 1TB
Manufacturer SanDisk SanDisk
NAND SanDisk 2nd Gen 128Gbit 19nm TLC TLC NAND
Form Factor 2.5" 2.5"
Capacity 120 GB 1024 GB
Cache 5120 MB (N/A) MB
Sequential Read 550 MB/s 545 MB/s
Sequential Write 500 MB/s 520 MB/s
Random Read 81000 IOPS 95000 IOPS
Random Write 80000 IOPS 75000 IOPS
Interface SATA III 6Gb/s SATA III 6Gb/s
Controller Marvell 88SS9190 Marvell 88SS1074
Date Released 2014 2016
Endurance 54 TB 320 TB
Notes 3 Year Warranty Warranty 5 years