The WD Blue WD120EAGZ 12TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive costs $0.0375/GB while the Seagate Exos X18 ST12000NM000J 12TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives costs $0.0472/GB. WD Blue WD120EAGZ 12TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive offers 21% better value per gigabyte as of July 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
WD Blue WD120EAGZ 12TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive vs Seagate Exos X18 ST12000NM000J 12TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives — Which Is Better Value?
Specification Comparison
| Spec | WD Blue WD120EAGZ 12TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive | Seagate Exos X18 ST12000NM000J 12TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives |
|---|---|---|
| Brand | Western Digital | Seagate |
| Capacity | 12TB | 12TB |
| $/GB | $0.0375 | $0.0472 |
| Price | $449.99 | $566.10 |
| Retailer | Newegg | Newegg |
| Category | Hard Drives (HDD) | Hard Drives (HDD) |
| Subcategory | hdd | hdd |
Price Across Retailers
Which Should You Buy?
Based on current pricing data, the WD Blue WD120EAGZ 12TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive offers better value at $0.0375//GB compared to the Seagate Exos X18 ST12000NM000J 12TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives at $0.0472//GB — that's roughly 21% less per gigabyte.
The best deal for the WD Blue WD120EAGZ 12TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive is $449.99 at Newegg, while the Seagate Exos X18 ST12000NM000J 12TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives starts at $566.10 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 Blue WD120EAGZ 12TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive and Seagate Exos X18 ST12000NM000J 12TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives product page for detailed specifications and price history.
Frequently Asked Questions
Is WD Blue WD120EAGZ 12TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive or Seagate Exos X18 ST12000NM000J 12TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives a better deal?
As of July 2026, WD Blue WD120EAGZ 12TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive offers better value at $0.0375//GB compared to Seagate Exos X18 ST12000NM000J 12TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives at $0.0472//GB. That is approximately 21% better value per gigabyte.
What is the price per GB of WD Blue WD120EAGZ 12TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive?
The WD Blue WD120EAGZ 12TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive is currently priced at $0.0375/GB ($449.99 for 12TB) at Newegg.
Where can I buy Seagate Exos X18 ST12000NM000J 12TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives for the cheapest price?
The cheapest price for the Seagate Exos X18 ST12000NM000J 12TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives is $566.10 at Newegg, which works out to $0.0472/GB.