Seagate BarraCuda 2.5-inch HDD 1TB vs Western Digital WD Blue 3.5-inch HDD 1TB
At least one of these has no price the site currently tracks, so what follows weighs specifications alone.
| Specification | SeagateBarraCuda 2.5-inch HDD 1TB | Western DigitalWD Blue 3.5-inch HDD 1TB |
|---|---|---|
| Capacity (GB) | 1000 | 1000 |
| Current best price | $59.00at Amazon.com · captured 2026-09-13 | — |
| Price per TB | $59.00 | — |
| RPM | 5400 | 7200better |
| Cache (MB) | 128better | 64 |
| Form factor | 2.5-inch | 3.5-inch |
| Warranty (years) | 2 | 2 |
How these two compare
Sequential throughput
Seagate BarraCuda 2.5-inch HDD 1TB is rated 140 MB/s read and 140 MB/s write; Western Digital WD Blue 3.5-inch HDD 1TB, 150 MB/s read and 150 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 Blue 3.5-inch HDD 1TB carries the higher one.
Spindle speed
Seagate BarraCuda 2.5-inch HDD 1TB turns at 5400 RPM, Western Digital WD Blue 3.5-inch HDD 1TB 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 2.5-inch HDD 1TB ships with 128 MB of cache built in, Western Digital WD Blue 3.5-inch HDD 1TB with 64 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.
Form factor
Seagate BarraCuda 2.5-inch HDD 1TB is 2.5-inch and Western Digital WD Blue 3.5-inch HDD 1TB is 3.5-inch. A 3.5" drive fits a desktop bay; a 2.5" drive fits a laptop or a compact enclosure — the two are not a physical swap for each other.
Warranty
Seagate BarraCuda 2.5-inch HDD 1TB is warranted for 2 years, Western Digital WD Blue 3.5-inch HDD 1TB for 2. 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 2.5-inch HDD 1TB or Western Digital WD Blue 3.5-inch HDD 1TB?
- Seagate BarraCuda 2.5-inch HDD 1TB is rated 140 MB/s read and 140 MB/s write; Western Digital WD Blue 3.5-inch HDD 1TB, 150 MB/s read and 150 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 Blue 3.5-inch HDD 1TB carries the higher one.
- Should you buy Seagate BarraCuda 2.5-inch HDD 1TB or Western Digital WD Blue 3.5-inch HDD 1TB?
- 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.