Samsung 9100 Pro 2TB vs Western Digital WD_BLACK SN8100 2TB

Samsung9100 Pro 2TB2000 GB · 14800 MB/s · 13400 MB/s · tlcLeads on Sequential write
Western DigitalWD_BLACK SN8100 2TB2000 GB · 14900 MB/s · 11000 MB/s · tlcLeads on Sequential read
In short

At least one of these has no price the site currently tracks, so what follows weighs specifications alone.

SpecificationSamsung9100 Pro 2TBWestern DigitalWD_BLACK SN8100 2TB
Capacity (GB)20002000
Sequential read (MB/s)1480014900better
Sequential write (MB/s)13400better11000
Current best price
Price per TB
NAND typetlctlc

How these two compare

Sequential throughput

Samsung 9100 Pro 2TB states 14800 MB/s read and 13400 MB/s write; Western Digital WD_BLACK SN8100 2TB states 14900 MB/s read and 11000 MB/s write, both over PCIe. Sequential numbers like these describe large sustained transfers; the responsiveness you notice day to day tracks random access more closely than the peak figures do.

NAND

On the flash itself: Samsung 9100 Pro 2TB uses TLC, and Western Digital WD_BLACK SN8100 2TB uses TLC. NAND tiers count bits per cell — more bits pack more capacity into the same silicon but shorten write endurance and slow sustained writes, which is why QLC sits below TLC on lasting performance even when the sequential numbers match.

Which to buy

The site holds no current price for at least one of these, so it cannot call the buy on cost. Judge them on the specifications above — at the same capacity and interface, two drives usually part on things like the DRAM cache, the NAND tier, endurance and warranty, so weigh whichever of those the sections above report.

Common questions about this pair

Which is faster, Samsung 9100 Pro 2TB or Western Digital WD_BLACK SN8100 2TB?
Samsung 9100 Pro 2TB states 14800 MB/s read and 13400 MB/s write; Western Digital WD_BLACK SN8100 2TB states 14900 MB/s read and 11000 MB/s write, both over PCIe. Sequential numbers like these describe large sustained transfers; the responsiveness you notice day to day tracks random access more closely than the peak figures do.
Should you buy Samsung 9100 Pro 2TB or Western Digital WD_BLACK SN8100 2TB?
The site holds no current price for at least one of these, so it cannot call the buy on cost. Judge them on the specifications above — at the same capacity and interface, two drives usually part on things like the DRAM cache, the NAND tier, endurance and warranty, so weigh whichever of those the sections above report.
How we track prices

Related comparisons