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 $0.0323/GB while the SanDisk Professional 8TB G-DRIVE PROJECT Thunderbolt 3 External Hard Drive costs $0.0975/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 67% better value per gigabyte as of June 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 SanDisk Professional 8TB G-DRIVE PROJECT Thunderbolt 3 External Hard Drive — 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) | SanDisk Professional 8TB G-DRIVE PROJECT Thunderbolt 3 External Hard Drive |
|---|---|---|
| Brand | Seagate | SanDisk |
| Capacity | 8 TB | 8TB |
| $/GB | $0.0323 | $0.0975 |
| Price | $258.00 | $779.99 |
| 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 $0.0323//GB compared to the SanDisk Professional 8TB G-DRIVE PROJECT Thunderbolt 3 External Hard Drive at $0.0975//GB — that's roughly 67% 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 $258.00 at Amazon, while the SanDisk Professional 8TB G-DRIVE PROJECT Thunderbolt 3 External Hard Drive starts at $779.99 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 SanDisk Professional 8TB G-DRIVE PROJECT Thunderbolt 3 External 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 SanDisk Professional 8TB G-DRIVE PROJECT Thunderbolt 3 External Hard Drive a better deal?
As of June 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 $0.0323//GB compared to SanDisk Professional 8TB G-DRIVE PROJECT Thunderbolt 3 External Hard Drive at $0.0975//GB. That is approximately 67% 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 $0.0323/GB ($258.00 for 8 TB) at Amazon.
Where can I buy SanDisk Professional 8TB G-DRIVE PROJECT Thunderbolt 3 External Hard Drive for the cheapest price?
The cheapest price for the SanDisk Professional 8TB G-DRIVE PROJECT Thunderbolt 3 External Hard Drive is $779.99 at Newegg, which works out to $0.0975/GB.