Seagate IronWolf Pro HDD 4TB vs Western Digital WD Gold HDD 4TB
Neither Seagate IronWolf Pro HDD 4TB nor Western Digital WD Gold HDD 4TB wins outright — each takes something the other gives up, so the pick is which of those you want.
| Specification | SeagateIronWolf Pro HDD 4TB | Western DigitalWD Gold HDD 4TB |
|---|---|---|
| Capacity (GB) | 4000 | 4000 |
| Current best price | $159.60betterat Amazon.com · captured 2026-09-13 | $304.99at Amazon.com · captured 2026-09-13 |
| Price per TB | $39.90better | $76.25 |
| RPM | 7200 | 7200 |
| Cache (MB) | 256 | 256 |
| Form factor | 3.5-inch | 3.5-inch |
| Warranty (years) | 5 | 5 |
How these two compare
Sequential throughput
Seagate IronWolf Pro HDD 4TB is rated 250 MB/s read and 250 MB/s write; Western Digital WD Gold HDD 4TB, 255 MB/s read and 255 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 Gold HDD 4TB carries the higher one.
Price
Seagate IronWolf Pro HDD 4TB is $159.60 ($39.90 per TB); Western Digital WD Gold HDD 4TB is $304.99 ($76.25 per TB).
Spindle speed
Seagate IronWolf Pro HDD 4TB and Western Digital WD Gold HDD 4TB both spin at 7200 RPM, so neither reaches data sooner than the other; at that shared speed the usual trade — quicker access against more power draw and noise — falls the same way for both.
Cache
Seagate IronWolf Pro HDD 4TB ships with 256 MB of cache built in, Western Digital WD Gold 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 IronWolf Pro HDD 4TB is warranted for 5 years, Western Digital WD Gold 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
It comes down to which you value more: Seagate IronWolf Pro HDD 4TB and Western Digital WD Gold HDD 4TB each lead the other somewhere the site tracks. Read the sections above for which edge — capacity, spindle speed, cache — fits your use.
Common questions about this pair
- Which is faster, Seagate IronWolf Pro HDD 4TB or Western Digital WD Gold HDD 4TB?
- Seagate IronWolf Pro HDD 4TB is rated 250 MB/s read and 250 MB/s write; Western Digital WD Gold HDD 4TB, 255 MB/s read and 255 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 Gold HDD 4TB carries the higher one.
- Which costs less per terabyte, Seagate IronWolf Pro HDD 4TB or Western Digital WD Gold HDD 4TB?
- Seagate IronWolf Pro HDD 4TB is $159.60 ($39.90 per TB); Western Digital WD Gold HDD 4TB is $304.99 ($76.25 per TB).
- Should you buy Seagate IronWolf Pro HDD 4TB or Western Digital WD Gold HDD 4TB?
- It comes down to which you value more: Seagate IronWolf Pro HDD 4TB and Western Digital WD Gold HDD 4TB each lead the other somewhere the site tracks. Read the sections above for which edge — capacity, spindle speed, cache — fits your use.