The 1TB 7.2K 2.5' 6G SATA WF12F 0WF12F ST91000640NS HDD Hard Drive costs $0.1036/GB while the Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD43PURZ costs $0.0324/GB. Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD43PURZ offers 69% better value per gigabyte as of May 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
1TB 7.2K 2.5' 6G SATA WF12F 0WF12F ST91000640NS HDD Hard Drive vs Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD43PURZ — Which Is Better Value?
Specification Comparison
| Spec | 1TB 7.2K 2.5' 6G SATA WF12F 0WF12F ST91000640NS HDD Hard Drive | Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD43PURZ |
|---|---|---|
| Brand | Western Digital | |
| Capacity | 1TB | 4 TB |
| $/GB | $0.1036 | $0.0324 |
| Price | $103.60 | $129.77 |
| Retailer | Newegg | Amazon |
| Category | Hard Drives (HDD) | Hard Drives (HDD) |
| Subcategory | hdd | hdd |
Price Across Retailers
Which Should You Buy?
Based on current pricing data, the Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD43PURZ offers better value at $0.0324//GB compared to the 1TB 7.2K 2.5' 6G SATA WF12F 0WF12F ST91000640NS HDD Hard Drive at $0.1036//GB — that's roughly 69% less per gigabyte.
The best deal for the Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD43PURZ is $129.77 at Amazon, while the 1TB 7.2K 2.5' 6G SATA WF12F 0WF12F ST91000640NS HDD Hard Drive starts at $103.60 at Newegg.
However, price per gigabyte isn't everything — consider factors like warranty, performance specs, brand reliability, and your specific capacity needs. Check each 1TB 7.2K 2.5' 6G SATA WF12F 0WF12F ST91000640NS HDD Hard Drive and Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD43PURZ product page for detailed specifications and price history.
Frequently Asked Questions
Is 1TB 7.2K 2.5' 6G SATA WF12F 0WF12F ST91000640NS HDD Hard Drive or Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD43PURZ a better deal?
As of May 2026, Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD43PURZ offers better value at $0.0324//GB compared to 1TB 7.2K 2.5' 6G SATA WF12F 0WF12F ST91000640NS HDD Hard Drive at $0.1036//GB. That is approximately 69% better value per gigabyte.
What is the price per GB of 1TB 7.2K 2.5' 6G SATA WF12F 0WF12F ST91000640NS HDD Hard Drive?
The 1TB 7.2K 2.5' 6G SATA WF12F 0WF12F ST91000640NS HDD Hard Drive is currently priced at $0.1036/GB ($103.60 for 1TB) at Newegg.
Where can I buy Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD43PURZ for the cheapest price?
The cheapest price for the Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD43PURZ is $129.77 at Amazon, which works out to $0.0324/GB.