The WD Black 4TB Performance Desktop Hard Disk Drive - 7200 RPM SATA 6Gb/s 64MB Cache 3.5 Inch - WD4003FZEX costs $0.0750/GB while the Seagate BarraCuda 4TB Internal Hard Drive HDD – 3.5 Inch Sata 6 Gb/s 5400 RPM 256MB Cache For Computer Desktop PC – Frustration Free Packaging ST4000DMZ04/DM004 costs $0.0360/GB. Seagate BarraCuda 4TB Internal Hard Drive HDD – 3.5 Inch Sata 6 Gb/s 5400 RPM 256MB Cache For Computer Desktop PC – Frustration Free Packaging ST4000DMZ04/DM004 offers 52% better value per gigabyte as of July 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
WD Black 4TB Performance Desktop Hard Disk Drive - 7200 RPM SATA 6Gb/s 64MB Cache 3.5 Inch - WD4003FZEX vs Seagate BarraCuda 4TB Internal Hard Drive HDD – 3.5 Inch Sata 6 Gb/s 5400 RPM 256MB Cache For Computer Desktop PC – Frustration Free Packaging ST4000DMZ04/DM004 — Which Is Better Value?
Specification Comparison
| Spec | WD Black 4TB Performance Desktop Hard Disk Drive - 7200 RPM SATA 6Gb/s 64MB Cache 3.5 Inch - WD4003FZEX | Seagate BarraCuda 4TB Internal Hard Drive HDD – 3.5 Inch Sata 6 Gb/s 5400 RPM 256MB Cache For Computer Desktop PC – Frustration Free Packaging ST4000DMZ04/DM004 |
|---|---|---|
| Brand | Western Digital | Seagate |
| Capacity | 4TB | 4 TB |
| $/GB | $0.0750 | $0.0360 |
| Price | $299.99 | $144.20 |
| Retailer | Newegg | Amazon |
| Category | Hard Drives (HDD) | Hard Drives (HDD) |
| Subcategory | hdd | hdd |
Price Across Retailers
WD Black 4TB Performance Desktop Hard Disk Drive - 7200 RPM SATA 6Gb/s 64MB Cache 3.5 Inch - WD4003FZEX
Seagate BarraCuda 4TB Internal Hard Drive HDD – 3.5 Inch Sata 6 Gb/s 5400 RPM 256MB Cache For Computer Desktop PC – Frustration Free Packaging ST4000DMZ04/DM004
Which Should You Buy?
Based on current pricing data, the Seagate BarraCuda 4TB Internal Hard Drive HDD – 3.5 Inch Sata 6 Gb/s 5400 RPM 256MB Cache For Computer Desktop PC – Frustration Free Packaging ST4000DMZ04/DM004 offers better value at $0.0360//GB compared to the WD Black 4TB Performance Desktop Hard Disk Drive - 7200 RPM SATA 6Gb/s 64MB Cache 3.5 Inch - WD4003FZEX at $0.0750//GB — that's roughly 52% less per gigabyte.
The best deal for the Seagate BarraCuda 4TB Internal Hard Drive HDD – 3.5 Inch Sata 6 Gb/s 5400 RPM 256MB Cache For Computer Desktop PC – Frustration Free Packaging ST4000DMZ04/DM004 is $144.20 at Amazon, while the WD Black 4TB Performance Desktop Hard Disk Drive - 7200 RPM SATA 6Gb/s 64MB Cache 3.5 Inch - WD4003FZEX starts at $299.99 at Newegg.
However, price per gigabyte isn't everything — consider factors like warranty, performance specs, brand reliability, and your specific capacity needs. Check each WD Black 4TB Performance Desktop Hard Disk Drive - 7200 RPM SATA 6Gb/s 64MB Cache 3.5 Inch - WD4003FZEX and Seagate BarraCuda 4TB Internal Hard Drive HDD – 3.5 Inch Sata 6 Gb/s 5400 RPM 256MB Cache For Computer Desktop PC – Frustration Free Packaging ST4000DMZ04/DM004 product page for detailed specifications and price history.
Frequently Asked Questions
Is WD Black 4TB Performance Desktop Hard Disk Drive - 7200 RPM SATA 6Gb/s 64MB Cache 3.5 Inch - WD4003FZEX or Seagate BarraCuda 4TB Internal Hard Drive HDD – 3.5 Inch Sata 6 Gb/s 5400 RPM 256MB Cache For Computer Desktop PC – Frustration Free Packaging ST4000DMZ04/DM004 a better deal?
As of July 2026, Seagate BarraCuda 4TB Internal Hard Drive HDD – 3.5 Inch Sata 6 Gb/s 5400 RPM 256MB Cache For Computer Desktop PC – Frustration Free Packaging ST4000DMZ04/DM004 offers better value at $0.0360//GB compared to WD Black 4TB Performance Desktop Hard Disk Drive - 7200 RPM SATA 6Gb/s 64MB Cache 3.5 Inch - WD4003FZEX at $0.0750//GB. That is approximately 52% better value per gigabyte.
What is the price per GB of WD Black 4TB Performance Desktop Hard Disk Drive - 7200 RPM SATA 6Gb/s 64MB Cache 3.5 Inch - WD4003FZEX?
The WD Black 4TB Performance Desktop Hard Disk Drive - 7200 RPM SATA 6Gb/s 64MB Cache 3.5 Inch - WD4003FZEX is currently priced at $0.0750/GB ($299.99 for 4TB) at Newegg.
Where can I buy Seagate BarraCuda 4TB Internal Hard Drive HDD – 3.5 Inch Sata 6 Gb/s 5400 RPM 256MB Cache For Computer Desktop PC – Frustration Free Packaging ST4000DMZ04/DM004 for the cheapest price?
The cheapest price for the Seagate BarraCuda 4TB Internal Hard Drive HDD – 3.5 Inch Sata 6 Gb/s 5400 RPM 256MB Cache For Computer Desktop PC – Frustration Free Packaging ST4000DMZ04/DM004 is $144.20 at Amazon, which works out to $0.0360/GB.