Compare any two Solid State Drives:


Samsung 850 Pro 128GB vs SanDisk Ultra II 240GB

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Specification Charts


Ultra II 240GB 240 GB
850 Pro 128GB 128 GB
Difference: 112 (88%)

Random Read

850 Pro 128GB 100000 IOPS
Ultra II 240GB 91000 IOPS
Difference: 9000 (10%)

Random Write

850 Pro 128GB 90000 IOPS
Ultra II 240GB 83000 IOPS
Difference: 7000 (8%)

Sequential Read

850 Pro 128GB 550 MB/sec
Ultra II 240GB 550 MB/sec
Difference: 0 (0%)

Sequential Write

Ultra II 240GB 500 MB/sec
850 Pro 128GB 470 MB/sec
Difference: 30 (6%)


850 Pro 128GB 150 TB
Ultra II 240GB 109 TB
Difference: 41 (38%)


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Model 850 Pro 128GB Ultra II 240GB
Manufacturer Samsung SanDisk
NAND Samsung 2nd Gen 86Gbit 40nm MLC V-NAND SanDisk 2nd Gen 128Gbit 19nm TLC
Form Factor 2.5" 2.5"
Capacity 128 GB 240 GB
Cache 256 MB 10240 MB
Sequential Read 550 MB/s 550 MB/s
Sequential Write 470 MB/s 500 MB/s
Random Read 100000 IOPS 91000 IOPS
Random Write 90000 IOPS 83000 IOPS
Interface SATA III 6Gb/s SATA III 6Gb/s
Controller Samsung 3-core MEX controller Marvell 88SS9190
Date Released 2014 2014
Endurance 150 TB 109 TB
Notes 10 years limited warranty AES 256-bit Full Disk Encryption (FDE) TCG/Opal v2.0, Encrypted Drive (IEEE1667) 3 Year Warranty

Price Comparison

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850 Pro 128GB

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Ultra II 240GB

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