The Seagate Barracuda 6TB Internal Hard Drive HDD – 3.5 Inch SATA 6 Gb/s 5400 RPM 256MB Cache for Computer Desktop PC (ST6000DM003) costs $0.0332/GB while the WD - My Passport 6TB External USB 3.0 Portable Hard Drive - Black costs $0.0308/GB. WD - My Passport 6TB External USB 3.0 Portable Hard Drive - Black offers 7% better value per gigabyte as of April 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
Seagate Barracuda 6TB Internal Hard Drive HDD – 3.5 Inch SATA 6 Gb/s 5400 RPM 256MB Cache for Computer Desktop PC (ST6000DM003) vs WD - My Passport 6TB External USB 3.0 Portable Hard Drive - Black — Which Is Better Value?
WD - My Passport 6TB External USB 3.0 Portable Hard Drive - Black
Specification Comparison
| Spec | Seagate Barracuda 6TB Internal Hard Drive HDD – 3.5 Inch SATA 6 Gb/s 5400 RPM 256MB Cache for Computer Desktop PC (ST6000DM003) | WD - My Passport 6TB External USB 3.0 Portable Hard Drive - Black |
|---|---|---|
| Brand | Seagate | Western Digital |
| Capacity | 6 TB | 6 TB |
| $/GB | $0.0332 | $0.0308 |
| Price | $199.00 | $184.99 |
| Retailer | Amazon | Best Buy |
| Category | Hard Drives & SSDs | Hard Drives & SSDs |
| Subcategory | hdd | hdd |
Price Across Retailers
Which Should You Buy?
Based on current pricing data, the WD - My Passport 6TB External USB 3.0 Portable Hard Drive - Black offers better value at $0.0308//GB compared to the Seagate Barracuda 6TB Internal Hard Drive HDD – 3.5 Inch SATA 6 Gb/s 5400 RPM 256MB Cache for Computer Desktop PC (ST6000DM003) at $0.0332//GB — that's roughly 7% less per gigabyte.
The best deal for the WD - My Passport 6TB External USB 3.0 Portable Hard Drive - Black is $184.99 at Best Buy, while the Seagate Barracuda 6TB Internal Hard Drive HDD – 3.5 Inch SATA 6 Gb/s 5400 RPM 256MB Cache for Computer Desktop PC (ST6000DM003) starts at $199.00 at Amazon.
However, price per gigabyte isn't everything — consider factors like warranty, performance specs, brand reliability, and your specific capacity needs. Check each Seagate Barracuda 6TB Internal Hard Drive HDD – 3.5 Inch SATA 6 Gb/s 5400 RPM 256MB Cache for Computer Desktop PC (ST6000DM003) and WD - My Passport 6TB External USB 3.0 Portable Hard Drive - Black product page for detailed specifications and price history.
Frequently Asked Questions
Is Seagate Barracuda 6TB Internal Hard Drive HDD – 3.5 Inch SATA 6 Gb/s 5400 RPM 256MB Cache for Computer Desktop PC (ST6000DM003) or WD - My Passport 6TB External USB 3.0 Portable Hard Drive - Black a better deal?
As of April 2026, WD - My Passport 6TB External USB 3.0 Portable Hard Drive - Black offers better value at $0.0308//GB compared to Seagate Barracuda 6TB Internal Hard Drive HDD – 3.5 Inch SATA 6 Gb/s 5400 RPM 256MB Cache for Computer Desktop PC (ST6000DM003) at $0.0332//GB. That is approximately 7% better value per gigabyte.
What is the price per GB of Seagate Barracuda 6TB Internal Hard Drive HDD – 3.5 Inch SATA 6 Gb/s 5400 RPM 256MB Cache for Computer Desktop PC (ST6000DM003)?
The Seagate Barracuda 6TB Internal Hard Drive HDD – 3.5 Inch SATA 6 Gb/s 5400 RPM 256MB Cache for Computer Desktop PC (ST6000DM003) is currently priced at $0.0332/GB ($199.00 for 6 TB) at Amazon.
Where can I buy WD - My Passport 6TB External USB 3.0 Portable Hard Drive - Black for the cheapest price?
The cheapest price for the WD - My Passport 6TB External USB 3.0 Portable Hard Drive - Black is $184.99 at Best Buy, which works out to $0.0308/GB.