The Seagate BarraCuda Internal Hard Drive 8TB SATA 6Gb/s 256MB Cache 3.5-Inch (ST8000DM004),Mechanical Hard Disk costs $0.0312/GB while the WD My Book 8TB Desktop External Hard Drive for Windows/Mac/Laptop, USB 3.0 Black (WDBBGB0080HBK-NESN) costs $0.0500/GB. Seagate BarraCuda Internal Hard Drive 8TB SATA 6Gb/s 256MB Cache 3.5-Inch (ST8000DM004),Mechanical Hard Disk offers 38% better value per gigabyte as of June 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
Seagate BarraCuda Internal Hard Drive 8TB SATA 6Gb/s 256MB Cache 3.5-Inch (ST8000DM004),Mechanical Hard Disk vs WD My Book 8TB Desktop External Hard Drive for Windows/Mac/Laptop, USB 3.0 Black (WDBBGB0080HBK-NESN) — Which Is Better Value?
Specification Comparison
| Spec | Seagate BarraCuda Internal Hard Drive 8TB SATA 6Gb/s 256MB Cache 3.5-Inch (ST8000DM004),Mechanical Hard Disk | WD My Book 8TB Desktop External Hard Drive for Windows/Mac/Laptop, USB 3.0 Black (WDBBGB0080HBK-NESN) |
|---|---|---|
| Brand | Seagate | Western Digital |
| Capacity | 8 TB | 8TB |
| $/GB | $0.0312 | $0.0500 |
| Price | $249.99 | $399.99 |
| 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 Internal Hard Drive 8TB SATA 6Gb/s 256MB Cache 3.5-Inch (ST8000DM004),Mechanical Hard Disk offers better value at $0.0312//GB compared to the WD My Book 8TB Desktop External Hard Drive for Windows/Mac/Laptop, USB 3.0 Black (WDBBGB0080HBK-NESN) at $0.0500//GB — that's roughly 38% less per gigabyte.
The best deal for the Seagate BarraCuda Internal Hard Drive 8TB SATA 6Gb/s 256MB Cache 3.5-Inch (ST8000DM004),Mechanical Hard Disk is $249.99 at Amazon, while the WD My Book 8TB Desktop External Hard Drive for Windows/Mac/Laptop, USB 3.0 Black (WDBBGB0080HBK-NESN) starts at $399.99 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 Internal Hard Drive 8TB SATA 6Gb/s 256MB Cache 3.5-Inch (ST8000DM004),Mechanical Hard Disk and WD My Book 8TB Desktop External Hard Drive for Windows/Mac/Laptop, USB 3.0 Black (WDBBGB0080HBK-NESN) product page for detailed specifications and price history.
Frequently Asked Questions
Is Seagate BarraCuda Internal Hard Drive 8TB SATA 6Gb/s 256MB Cache 3.5-Inch (ST8000DM004),Mechanical Hard Disk or WD My Book 8TB Desktop External Hard Drive for Windows/Mac/Laptop, USB 3.0 Black (WDBBGB0080HBK-NESN) a better deal?
As of June 2026, Seagate BarraCuda Internal Hard Drive 8TB SATA 6Gb/s 256MB Cache 3.5-Inch (ST8000DM004),Mechanical Hard Disk offers better value at $0.0312//GB compared to WD My Book 8TB Desktop External Hard Drive for Windows/Mac/Laptop, USB 3.0 Black (WDBBGB0080HBK-NESN) at $0.0500//GB. That is approximately 38% better value per gigabyte.
What is the price per GB of Seagate BarraCuda Internal Hard Drive 8TB SATA 6Gb/s 256MB Cache 3.5-Inch (ST8000DM004),Mechanical Hard Disk?
The Seagate BarraCuda Internal Hard Drive 8TB SATA 6Gb/s 256MB Cache 3.5-Inch (ST8000DM004),Mechanical Hard Disk is currently priced at $0.0312/GB ($249.99 for 8 TB) at Amazon.
Where can I buy WD My Book 8TB Desktop External Hard Drive for Windows/Mac/Laptop, USB 3.0 Black (WDBBGB0080HBK-NESN) for the cheapest price?
The cheapest price for the WD My Book 8TB Desktop External Hard Drive for Windows/Mac/Laptop, USB 3.0 Black (WDBBGB0080HBK-NESN) is $399.99 at Newegg, which works out to $0.0500/GB.