SanDisk Ultra Plus VS Samsung 840 Pro

Compare any two SSD:

SanDisk Ultra Plus vs Samsung 840 Pro


SanDisk-Ultra-Plus-SSD-300x229The Sandisk Ultra Plus SSD is one of two solid state drives simultaneously introduced by SanDisk at the start of 2013. This SATA III 6 GBps drive can deliver peak perfomances of 530 MB/s and 445 MB/s for sequential read and write respectively while IOPS for 4k random read is 82,000. It uses Marvell’s 88SS9175 controller, an improved version of the 88SS9174.

samsung_840_series_ssdIn comparison, Samsung’s 840 Pro series uses the manufacturer’s proprietary MDX controller and its rated maximum transfer rates (sequential) are 540 MB/s (read) and 520 MB/s (write). Random read IOPS is rated at 100,000 and random write IOPS at 90,000. The 840 Pro is available in capacities ranging from 64 GB up to 512 GB.

Power Usage and Theoretical Benchmarks

Sequential Read

SanDisk Ultra Plus 530  MB/s
Samsung 840 Pro 540  MB/s
Difference:10 MB/s (1.85%)

Sequential Write

SanDisk Ultra Plus 445  MB/s
Samsung 840 Pro 520  MB/s
Difference: 75 MB/s (85.58%)

Random Write IOPS

SanDisk Ultra Plus 39000  IOPS
Samsung 840 Pro 90000  IOPS
Difference: 51000 IOPS(43.33%)

Power Consumption Idle

SanDisk Ultra Plus 0.12  mW
Samsung 840 Pro 310  mW
Difference: 309.88 IOPS (99.96%)

Power Consumption Active

SanDisk Ultra Plus 0  mW
Samsung 840 Pro 3100  mW
Difference: 3100 IOPS (100%)

Please note that the comparisons above are not benchmarks based on tried and tested performance, but on drive data and specifications from the corresponding SSD manufacturer. The results in real-world scenarios may differ for a variety of reasons including hardware and software environment.

Price Comparison


Model SanDisk Ultra Plus Samsung 840 Pro
Year 2013 2012
Production Process 19 21nm
DRAM Cache N/A 512 MB
Interface SATA 6Gb/s SATA 6Gb/s
Form Factor 2.5" 2.5"
Sequential Read 530 MB/s 540 MB/s
Sequential Write 445 MB/s 520 MB/s
Random Write IOPS 39000 IOPS 90000 IOPS
Power Consumption Idle 0.12 mW 310 mW
Power Consumption Active 0 mW 3100 mW
Warranty 3 years 5 years
MTBF 2,000,000 hours 1,500,000 hours