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 $0.0349/GB while the WD Purple Pro 8TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives Bare Drive - WD8002PURP costs $0.0562/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 38% 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 Pro 8TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives Bare Drive - WD8002PURP — Which Is Better Value?
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 Pro 8TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives Bare Drive - WD8002PURP |
|---|---|---|
| Brand | Seagate | Western Digital |
| Capacity | 8 TB | 8TB |
| $/GB | $0.0349 | $0.0562 |
| Price | $279.49 | $449.99 |
| 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 $0.0349//GB compared to the WD Purple Pro 8TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives Bare Drive - WD8002PURP at $0.0562//GB — that's roughly 38% 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 $279.49 at Amazon, while the WD Purple Pro 8TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives Bare Drive - WD8002PURP starts at $449.99 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 Pro 8TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives Bare Drive - WD8002PURP 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 Pro 8TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives Bare Drive - WD8002PURP 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 $0.0349//GB compared to WD Purple Pro 8TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives Bare Drive - WD8002PURP at $0.0562//GB. That is approximately 38% 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 $0.0349/GB ($279.49 for 8 TB) at Amazon.
Where can I buy WD Purple Pro 8TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives Bare Drive - WD8002PURP for the cheapest price?
The cheapest price for the WD Purple Pro 8TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives Bare Drive - WD8002PURP is $449.99 at Newegg, which works out to $0.0562/GB.