The Seagate BarraCuda 8 TB Internal Hard Drive HDD – 3.5 Inch SATA 6 Gb/s, 5,400 RPM, 256 MB Cache for Computer Desktop PC (ST8000DMZ04/004) costs $0.0311/GB while the WD Purple WD62PURZ 6TB 5640 RPM 128MB SATA 6.0Gb/s 3.5' Hard Drive costs $0.0707/GB. Seagate BarraCuda 8 TB Internal Hard Drive HDD – 3.5 Inch SATA 6 Gb/s, 5,400 RPM, 256 MB Cache for Computer Desktop PC (ST8000DMZ04/004) offers 56% better value per gigabyte as of July 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
Seagate BarraCuda 8 TB Internal Hard Drive HDD – 3.5 Inch SATA 6 Gb/s, 5,400 RPM, 256 MB Cache for Computer Desktop PC (ST8000DMZ04/004) vs WD Purple WD62PURZ 6TB 5640 RPM 128MB SATA 6.0Gb/s 3.5' Hard Drive — Which Is Better Value?
WD Purple WD62PURZ 6TB 5640 RPM 128MB SATA 6.0Gb/s 3.5' Hard Drive
Specification Comparison
| Spec | Seagate BarraCuda 8 TB Internal Hard Drive HDD – 3.5 Inch SATA 6 Gb/s, 5,400 RPM, 256 MB Cache for Computer Desktop PC (ST8000DMZ04/004) | WD Purple WD62PURZ 6TB 5640 RPM 128MB SATA 6.0Gb/s 3.5' Hard Drive |
|---|---|---|
| Brand | Seagate | Western Digital |
| Capacity | 8 TB | 6TB |
| $/GB | $0.0311 | $0.0707 |
| Price | $248.55 | $424.45 |
| Retailer | Amazon | Newegg |
| Category | Hard Drives (HDD) | Hard Drives (HDD) |
| Subcategory | hdd | hdd |
Price Across Retailers
Which Should You Buy?
Based on current pricing data, the Seagate BarraCuda 8 TB Internal Hard Drive HDD – 3.5 Inch SATA 6 Gb/s, 5,400 RPM, 256 MB Cache for Computer Desktop PC (ST8000DMZ04/004) offers better value at $0.0311//GB compared to the WD Purple WD62PURZ 6TB 5640 RPM 128MB SATA 6.0Gb/s 3.5' Hard Drive at $0.0707//GB — that's roughly 56% less per gigabyte.
The best deal for the Seagate BarraCuda 8 TB Internal Hard Drive HDD – 3.5 Inch SATA 6 Gb/s, 5,400 RPM, 256 MB Cache for Computer Desktop PC (ST8000DMZ04/004) is $248.55 at Amazon, while the WD Purple WD62PURZ 6TB 5640 RPM 128MB SATA 6.0Gb/s 3.5' Hard Drive starts at $424.45 at Newegg.
However, price per gigabyte isn't everything — consider factors like warranty, performance specs, brand reliability, and your specific capacity needs. Check each Seagate BarraCuda 8 TB Internal Hard Drive HDD – 3.5 Inch SATA 6 Gb/s, 5,400 RPM, 256 MB Cache for Computer Desktop PC (ST8000DMZ04/004) and WD Purple WD62PURZ 6TB 5640 RPM 128MB SATA 6.0Gb/s 3.5' Hard Drive product page for detailed specifications and price history.
Frequently Asked Questions
Is Seagate BarraCuda 8 TB Internal Hard Drive HDD – 3.5 Inch SATA 6 Gb/s, 5,400 RPM, 256 MB Cache for Computer Desktop PC (ST8000DMZ04/004) or WD Purple WD62PURZ 6TB 5640 RPM 128MB SATA 6.0Gb/s 3.5' Hard Drive a better deal?
As of July 2026, Seagate BarraCuda 8 TB Internal Hard Drive HDD – 3.5 Inch SATA 6 Gb/s, 5,400 RPM, 256 MB Cache for Computer Desktop PC (ST8000DMZ04/004) offers better value at $0.0311//GB compared to WD Purple WD62PURZ 6TB 5640 RPM 128MB SATA 6.0Gb/s 3.5' Hard Drive at $0.0707//GB. That is approximately 56% better value per gigabyte.
What is the price per GB of Seagate BarraCuda 8 TB Internal Hard Drive HDD – 3.5 Inch SATA 6 Gb/s, 5,400 RPM, 256 MB Cache for Computer Desktop PC (ST8000DMZ04/004)?
The Seagate BarraCuda 8 TB Internal Hard Drive HDD – 3.5 Inch SATA 6 Gb/s, 5,400 RPM, 256 MB Cache for Computer Desktop PC (ST8000DMZ04/004) is currently priced at $0.0311/GB ($248.55 for 8 TB) at Amazon.
Where can I buy WD Purple WD62PURZ 6TB 5640 RPM 128MB SATA 6.0Gb/s 3.5' Hard Drive for the cheapest price?
The cheapest price for the WD Purple WD62PURZ 6TB 5640 RPM 128MB SATA 6.0Gb/s 3.5' Hard Drive is $424.45 at Newegg, which works out to $0.0707/GB.