Seagate BarraCuda 3.5-inch HDD 4TB vs Western Digital WD Black HDD 4TB
At least one of these has no price the site currently tracks, so what follows weighs specifications alone.
| Specification | SeagateBarraCuda 3.5-inch HDD 4TB | Western DigitalWD Black HDD 4TB |
|---|---|---|
| Capacity (GB) | 4000 | 4000 |
| Current best price | 158,32 €at Amazon.fr · captured 2026-09-02 | — |
| Price per TB | 39,58 € | — |
| RPM | 5400 | 7200better |
| Cache (MB) | 256 | 256 |
| Form factor | 3.5-inch | 3.5-inch |
| Warranty (years) | 2 | 5better |
How these two compare
Sequential throughput
Seagate BarraCuda 3.5-inch HDD 4TB is rated 190 MB/s read and 190 MB/s write; Western Digital WD Black HDD 4TB, 202 MB/s read and 202 MB/s write. On a mechanical drive read and write track closely — platter speed and data density set the rate, not the direction — so it is the read figure that separates them, and Western Digital WD Black HDD 4TB carries the higher one.
Spindle speed
Seagate BarraCuda 3.5-inch HDD 4TB turns at 5400 RPM, Western Digital WD Black HDD 4TB at 7200 RPM. Higher RPM shortens the wait for data under the head; lower RPM tends to mean less power draw and a quieter drive.
Cache
Seagate BarraCuda 3.5-inch HDD 4TB ships with 256 MB of cache built in, Western Digital WD Black HDD 4TB with 256 MB. The buffer lets the drive take in a burst of writes before the platter catches up and keeps recently read data close — useful under mixed, stop-start load, less so for a single large copy.
Warranty
Seagate BarraCuda 3.5-inch HDD 4TB is warranted for 2 years, Western Digital WD Black HDD 4TB for 5. The cover is the maker's own commitment; a longer one usually signals a drive built for heavier duty, though it is the mechanism, not the paperwork, that has to last.
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 mechanical drives usually part on things like spindle speed, cache and warranty, so weigh whichever the sections above report.
Common questions about this pair
- Which is faster, Seagate BarraCuda 3.5-inch HDD 4TB or Western Digital WD Black HDD 4TB?
- Seagate BarraCuda 3.5-inch HDD 4TB is rated 190 MB/s read and 190 MB/s write; Western Digital WD Black HDD 4TB, 202 MB/s read and 202 MB/s write. On a mechanical drive read and write track closely — platter speed and data density set the rate, not the direction — so it is the read figure that separates them, and Western Digital WD Black HDD 4TB carries the higher one.
- Should you buy Seagate BarraCuda 3.5-inch HDD 4TB or Western Digital WD Black HDD 4TB?
- 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 mechanical drives usually part on things like spindle speed, cache and warranty, so weigh whichever the sections above report.