PCWorld – August 2019

96 PCWorld AUGUST 2019

REVIEWS ADDLINK S70 NVME SSD

512GB model (currently $67

on Amazon [go.pcworld.

com/s512]), and a 2TB model

(currently $269 on Amazon

[go.pcworld.com/s2tb]). Yes,

you pay a bit more per

gigabyte for the max capacity,

but it’s still darn inexpensive.

PERFORMANCE

In the synthetic benchmarks,

the S70 gave the best drives

I’ve tested a real run for the

money. The fact that it slows

down after it runs out of

cache to just under 1GBps

during sustained writes left it

slightly behind. But only a

couple of drives sustain

faster than that, and I’d

hardly call that rate slothful.

The S70 is a very fast

drive, and you’d be hard-

pressed to tell the difference

with the naked eye between

the WD SN750 Black NVMe

and the Samsung 970 Pro to

which I compare it.

The S70’s

CrystalDiskMark numbers,

shown above (gold bars),

measure sustained

throughput with relatively

small amounts of data (1MB).

Though it’s not the world-beater CrystalDiskMark makes it out to

be, the AddLink S70’s numbers aren’t that far off the mark.

Sequential W(Q =32, T=1) rite 4K

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

CrystalDiskMark 6

(MBps)

LONGER BARS INDICATE BETTER PERFORMANCE

2,574

3,485

3,232

3,454

2,717

3,525

Samsung 970 Pro

AddLink S70 WD Black SN750

48GB Write

48GB Read

48GB copies

(Seconds)

LONGER BARS INDICATE BETTER PERFORMANCE

333

142

32

32

127

347

143

126

45

33

312

133

128

24

27 Samsung 970 Pro

AddLink S70 WD Black SN750

Slowing down to just under 1GBps during long sustained writes and

other realities mean the S70 can’t quite match Samsung’s 970 Pro, or

even WD’s SN750 Black, but for the price it’s a darn near thing.

Tot al

48GB Folder Write

48GB Folder Read