Western Digital WD Black HDD 1TB vs Western Digital WD Blue 2.5-inch HDD 1TB
The site holds no current price for at least one of these, so what follows compares specifications alone.
| Specification | Western DigitalWD Black HDD 1TB | Western DigitalWD Blue 2.5-inch HDD 1TB |
|---|---|---|
| Capacity (GB) | 1000 | 1000 |
| Current best price | — | 99,99 €at Amazon.fr · captured 2026-09-13 |
| Price per TB | — | 99,99 € |
| RPM | 7200better | 5400 |
| Cache (MB) | 64 | 128better |
| Form factor | 3.5-inch | 2.5-inch |
| Warranty (years) | 5better | 2 |
How these two compare
Sequential throughput
Western Digital WD Black HDD 1TB is rated 150 MB/s read and 150 MB/s write; Western Digital WD Blue 2.5-inch HDD 1TB is 150 MB/s read and 150 MB/s write — level on the read figure vendors headline. On a mechanical drive the two directions track closely anyway, since platter speed and data density set the rate rather than the direction.
Spindle speed
Western Digital WD Black HDD 1TB spins at 7200 RPM and Western Digital WD Blue 2.5-inch HDD 1TB at 5400 RPM. The faster-spinning drive reaches data sooner; the slower one typically draws less power and runs quieter — responsiveness traded against heat and noise.
Cache
Western Digital WD Black HDD 1TB carries 64 MB of onboard cache and Western Digital WD Blue 2.5-inch HDD 1TB carries 128 MB — the buffer the drive uses to absorb bursts of writes and hold recently read data, smoothing over the mechanical delay of moving the head. More cache helps most under bursty, mixed workloads; for one long sequential transfer it barely matters.
Form factor
Western Digital WD Black HDD 1TB comes in 3.5-inch, Western Digital WD Blue 2.5-inch HDD 1TB in 2.5-inch. A desktop bay takes a 3.5" drive; a laptop or compact enclosure takes a 2.5" one — swap one form factor in for the other and it will not physically fit.
Warranty
Western Digital WD Black HDD 1TB carries a 5-year warranty and Western Digital WD Blue 2.5-inch HDD 1TB a 2-year one — how long the maker will replace a failed drive, and a rough read on the confidence it has in the mechanism.
Which to buy
With a price missing for at least one side, there is no cost verdict to give. What separates two otherwise-similar drives is up in the sections above — how fast the platters spin, how much cache each carries, the form factor and the warranty — so weigh those against what your build needs.
Common questions about this pair
- Which is faster, Western Digital WD Black HDD 1TB or Western Digital WD Blue 2.5-inch HDD 1TB?
- Western Digital WD Black HDD 1TB is rated 150 MB/s read and 150 MB/s write; Western Digital WD Blue 2.5-inch HDD 1TB is 150 MB/s read and 150 MB/s write — level on the read figure vendors headline. On a mechanical drive the two directions track closely anyway, since platter speed and data density set the rate rather than the direction.
- Should you buy Western Digital WD Black HDD 1TB or Western Digital WD Blue 2.5-inch HDD 1TB?
- With a price missing for at least one side, there is no cost verdict to give. What separates two otherwise-similar drives is up in the sections above — how fast the platters spin, how much cache each carries, the form factor and the warranty — so weigh those against what your build needs.