Launched at the same time as the EVO model, the Samsung SSD860 PRO, the successor the mighty 850 PRO, uses Samsung's 64-layer MLC V-NAND and has an endurance rating that eclipses the previous generation 850 PRO's life expectancy.
The SSD860 PRO uses Samsung’s latest fourth generation 64-layer MLC V-NAND along with a new controller, the MJX. Technical details on the new controller are pretty sketchy to say the least at the time of writing this review but the one thing that is clear is that it has a new memory controller as it supports LPDDR4 memory and Samsung also say it has improved Linux compatibility.
The SSD860 PRO is available in five capacities; 256GB, 512GB, 1TB, 2TB and the flagship 4TB – the model we have for review today. At launch the drive is only available in the standard 2.5in format. The 4TB drive is equipped with 4GB of LPDDR4 cache (the 2TB drive has 2GB, the 1TB model 1GB and both the 512GB and 256GB drives have to make do with 512MB.)
Quoted performance across the range for the 860PRO is 560MB/s for Sequential reads and 530MB/s for writes. 4K random read performance is stated as up to 100,000 IOPS with writes at up to 90,000 IOPS.
The most striking aspect of the 4TB SSD860 PRO is the rated endurance. At 4,800TB TBW it’s an 8 times improvement over the previous SSD850 PRO. To further add peace of mind Samsung stand behind the drive with a 5 year warranty, although that's half of what they backed the 850 PRO with.
Usable Capacities: 4TB
NAND Components: Samsung 64-layer MLC V-NAND
NAND Controller: Samsung MJX
Cache: 4GB LPDDR4
Interface: Serial ATA (SATA) 6Gb/s (SATA III)
Form Factor: 2.5in, 7mm
Dimensions: 100 x 69.85 x 6.8mm
Firmware Version: RVM01B6Q
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