The WD Black 4TB Performance Desktop Hard Disk Drive - 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives Bare Drive - WD4006FZBX costs $0.0605/GB while the Seagate Desktop HDD ST4000DM000 4TB 64MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive Bare Drive costs $0.0413/GB. Seagate Desktop HDD ST4000DM000 4TB 64MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive Bare Drive offers 32% better value per gigabyte as of August 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 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives Bare Drive - WD4006FZBX vs Seagate Desktop HDD ST4000DM000 4TB 64MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive Bare Drive — Which Is Better Value?
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Specification Comparison
| Spec | WD Black 4TB Performance Desktop Hard Disk Drive - 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives Bare Drive - WD4006FZBX | Seagate Desktop HDD ST4000DM000 4TB 64MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive Bare Drive |
|---|---|---|
| Brand | Western Digital | Seagate |
| Capacity | 4TB | 4TB |
| $/GB | $0.0605 | $0.0413 |
| Price | $241.99 | $165.00 |
| Retailer | Newegg | Newegg |
| Category | Hard Drives (HDD) | Hard Drives (HDD) |
| Subcategory | hdd | hdd |
Price Across Retailers
WD Black 4TB Performance Desktop Hard Disk Drive - 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives Bare Drive - WD4006FZBX
Seagate Desktop HDD ST4000DM000 4TB 64MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive Bare Drive
Which Should You Buy?
Based on current pricing data, the Seagate Desktop HDD ST4000DM000 4TB 64MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive Bare Drive offers better value at $0.0413//GB compared to the WD Black 4TB Performance Desktop Hard Disk Drive - 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives Bare Drive - WD4006FZBX at $0.0605//GB — that's roughly 32% less per gigabyte.
The best deal for the Seagate Desktop HDD ST4000DM000 4TB 64MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive Bare Drive is $165.00 at Newegg, while the WD Black 4TB Performance Desktop Hard Disk Drive - 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives Bare Drive - WD4006FZBX starts at $241.99 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 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives Bare Drive - WD4006FZBX and Seagate Desktop HDD ST4000DM000 4TB 64MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive Bare Drive product page for detailed specifications and price history.
Frequently Asked Questions
Is WD Black 4TB Performance Desktop Hard Disk Drive - 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives Bare Drive - WD4006FZBX or Seagate Desktop HDD ST4000DM000 4TB 64MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive Bare Drive a better deal?
As of August 2026, Seagate Desktop HDD ST4000DM000 4TB 64MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive Bare Drive offers better value at $0.0413//GB compared to WD Black 4TB Performance Desktop Hard Disk Drive - 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives Bare Drive - WD4006FZBX at $0.0605//GB. That is approximately 32% better value per gigabyte.
What is the price per GB of WD Black 4TB Performance Desktop Hard Disk Drive - 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives Bare Drive - WD4006FZBX?
The WD Black 4TB Performance Desktop Hard Disk Drive - 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives Bare Drive - WD4006FZBX is currently priced at $0.0605/GB ($241.99 for 4TB) at Newegg.
Where can I buy Seagate Desktop HDD ST4000DM000 4TB 64MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive Bare Drive for the cheapest price?
The cheapest price for the Seagate Desktop HDD ST4000DM000 4TB 64MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive Bare Drive is $165.00 at Newegg, which works out to $0.0413/GB.