PC World - USA (2020-04)

APRIL 2020 PCWorld 75

48GB write tests shown below, this sway

was apparent...

Those are eye-opening results,

however, check out the 450GB write

Though it was slightly slower than Samsung T7’s

reading, the Extreme Pro Portable blasted its rival

when it came to writing.

In CrystalDiskMark, the Extreme Pro was rated as
far faster than its predecessor and Samsung’s T5,
but only marginally faster than Samsung’s newer
T7. Longer bars are better.

Sequential Write

(Q=32, T=1)

CrystalMark 6

MBps

511

1,033

SanDisk Extreme Portable Pro SSD SanDisk Extreme Portable SSD

LONGER BARS INDICATE BETTER PERFORMANCE

Samsung T7 Samsung T5

507

925

Sequential Read

(Q=32, T=1) 561

1,04 4

542

1,034

PERFORMANCE

SanDisk squeezed a lot more performance

across the board from the Pro version, so

much so that it’s the fastest USB SSD that

we’ve see to date. Burst performance is

roughly on a par with the Samsung T7’s,

but it blows that drive out of the water

during long writes. All the results shown

below are from the 1TB version SanDisk

sent us.

CrystalDiskMark 6 rated the Extreme

Pro and Samsung T7 drives nearly equal,

but as I just noted, real-world testing

revealed a distinct advantage for the

Extreme Pro during long writes. In the

Tot al t ime

48GB copies

Seconds

843

574

SanDisk Extreme Portable Pro SSD SanDisk Extreme Portable SSD

SHORTER BARS INDICATE BETTER PERFORMANCE

Samsung T7 Samsung T5

721

683

48GB folder

write 329

195

257

272

48GB folder

read 270

225

225

203

48GB folder

48GB read

135

127

136

109

112

72

72

82