PC World - USA (2021-03)

MARCH 2021 PCWorld 69

The 870 QVO offers outstanding small file
performance, only losing out in some tests to its
QVO cousin.

Random Write 4K (Q=1, T=1)

126

73

125

CrystalDiskMark 6

MBps

Samsung 870 EVO Samsung 870 QVO

Seagate Barracuda SSD Seagate 110 IronWolf

97

Random Read 4K (Q=1, T=1)

39

47

LONGER BARS INDICATE BETTER PERFORMANCE

Random Write 4K (Q=32, T=1)

357

280

351

342

Random Read 4K (Q=32, T=1)

393

333

369

381

Random Write 4K (Q=8, T=8)

351

320

354

344

Random Read 4K (Q=8, T=8)

399

332

402

387

28

26

The Samsung 870 EVO was the fastest overall

in our real world 48GB transfers, though by a

relatively small margin.

Total Time

668

660

616

48GB transfers

Seconds

628

48GB Folder Write

232

199

175

176

LONGER BARS INDICATE BETTER PERFORMANCE

48GB Folder Read

232

234

237

231

48GB Write

96

120

106

107

48GB Read

108

107

108

114

Samsung 870 EVO Samsung 870 QVO

Seagate Barracuda SSD Seagate 110 IronWolf

a lot of tasks, and over the long run that will
add up.
Note that I included the 2019-era Seagate
IronWolf 110 (go.pcworld.com/iwlf) in the
test comparisons, as it’s one of the few drives
that can keep up with the 870 EVO in all
phases. However, it’s significantly more

expensive and designed for SMB or the

enterprise.

As you can see left, there’s scant

difference among the competitors when it

comes to sustained write or read

performance. However, as you can see

below, design prowess and components can,

and do, make a difference in random and

small file performance.

As in the CrystalDiskMark 6 sustained