Samsung 860 QVO 4TB SSD Review

1. Introduction2. Samsung SSD860 QVO 4TB3. Testing Methodology4. CrystalDiskMark5. ATTO Disk Benchmark6. AS SSD7. 4K Random Read/Write Performance8. Throughput9. PCMark 8 - Storage Consistency10. PCMark 8 - Individual Test Suites11. PCMark 8 Storage Test - Individual Test Suites12. Performance Stability13. Real Life File Testing14. Closing Thoughts15. View All Pages

We are gradually seeing more and more SSDs, both SATA and NVMe based, being launched into the market using the latest 4-bit or QLC NAND flash technology. The latest drive to hit the market is the 4TB flagship drive of Samsung's SSD 860 QVO range – the company's first drive family to use 4-bit NAND.

The QLC equipped 860 QVO is the latest member of Samsung's SSD 860 product line, joining the 860 PRO (MLC NAND) and 860 EVO (TLC NAND). It uses a combination of 64-layer 1Tb 4-bit (QLC) V-NAND (Samsung call it 4-bit MLC V-NAND), a Samsung MJX controller and LPDDR4 cache, which in the case of the 4TB drive is 4GB in size.

The 4TB 860 QVO is rated at up to 550MB/s and 520MB/s for Sequential read/writes respectively (these figures are the same for all the drives in the SSD 860 QVO line-up). Random 4K reads are quoted as 97,000 IOPS with writes at 89,000.

The endurance for the 4TB SSD 860 QVO is very good for a QLC drive at 1,440TB TBW over the 3-year warranty Samsung backs the drive with.

Physical Specifications:

• Usable Capacities: 4TB.
• NAND Components: Samsung 64-layer 4-Bit (QLC) V-VAND.
• 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 7mm

Firmware Version: RVQ01B6Q

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