Low-cost consumer SSD Samsung 860 QVO based on QLC NAND flash memory presented

Samsung Electronics has expanded its offer of consumer solid-state drives with SATA interface by launching a new line of Samsung 860 QVO. The elemental base of the new drives is almost the same as that of the 860 Pro and 860 Evo: these are branded MJX controllers and 64-layer flash memory with a volumetric V-NAND layout. The difference is that the new series uses memory with four bits per cell (QLC). The abbreviation QVO stands for Quality and Value Optimized, which can be translated as "optimized for quality and value." Thus, the QVO line becomes one step below the Evo series and is the most affordable in the manufacturer’s product range.

860 QVO drives are available only in 2.5-inch, 1, 2, and 4 TB sizes. All use LPDDR4 buffer, the capacity of which, depending on the volume, is 1, 2 or 4 GB respectively.

For convenience, we have summarized the detailed technical characteristics of the drives in the table:

SSD Samsung 860 QVO 1 TB Samsung 860 QVO 2TB Samsung 860 QVO 4TB
The amount of memory LPDDR4, GB 1 2 4
The amount of buffer memory SLC working 6 GB [19] [19] [19] ] 6 GB 6 GB
advanced mode 42 GB 78 GB 78 GB
Read speed, MB / s 550
Write speed, MB / s normal mode 80 160 160
SLC mode 520
water content of random read operations with blocks of 4 KB in size, thou. IOPS QD1

7.5 (SLC)

4.4 (QLC)

QD32

96 (SLC)

36 ( QLC

97 (SLC)

60k (QLC)

Performance of random write operations, thousand IOPS QD1

42 (SLC)

21 (QLC)

42 (SLC)

38 (QLC)

QD32

89 (SLC)

21 (QLC)

89 (SLC)

40 (QLC)

89 (SLC)

42 (QLC)

Power consumption during active operation, W reading 2.1 2.3 2.3
post 2.2 [19659011] 3.1 3.1
Power consumption in idle mode, mW in Idle mode 30
DevSlp 3 3.5 7

Wear TBW, TB resistance

DWPD full of rewrites per day)

360 (0.3) 720 (0.3) 1440 (0.3)
Recommended price, in USD. USA 150 300 600

The table below allows you to compare new products for the price of 860 Pro and 860 Evo per gigabyte.

SSD Samsung 860 family (comparison by price)
Capacity The type of memory is NAND

250 GB

256 GB

500 GB

512 GB

1 TB 2 TB 4 TB
860 QVO QLC $ 149.99 (15 ¢ / GB)

$ 299.99

(15 ¢ / GB)

$ 599.99

(15 ¢ / GB)

860 EVO TLC $ 55.99 (22 / GB)

$ 72.99 [19659003] (15¢ / GB)

$ 127.98 (13 ¢ / GB)

$ 294.88

(15 ¢ / GB)

$ 797.99

$ 797.99

$ 797.99

$ 797.99 [19199193]

[796599

[1965900]

(20 ¢ / GB)

860 PRO MLC $ 97.00 (38 / GB) $ 147 (29 / GB) $ 284.99 (28 / GB) [19659111] $ 577.99 (28 ¢ / GB) $ 1179.99 (29 / GB)

The warranty period is three years. Samsung 860 QVO sales will begin December 16

In conclusion, you can look at the results of tests conducted by the AnandTech resource.

Source: Samsung and AnandTech

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