The WD Red Plus 8TB 5640 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives -WD80EFPX costs $0.0444/GB while the Seagate - Expansion Desktop 8TB HDD - Black costs $0.0350/GB. Seagate - Expansion Desktop 8TB HDD - Black 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 Red Plus 8TB 5640 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives -WD80EFPX vs Seagate - Expansion Desktop 8TB HDD - Black — Which Is Better Value?
Seagate - Expansion Desktop 8TB HDD - Black
Specification Comparison
| Spec | WD Red Plus 8TB 5640 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives -WD80EFPX | Seagate - Expansion Desktop 8TB HDD - Black |
|---|---|---|
| Brand | Western Digital | Seagate |
| Capacity | 8TB | 8 TB |
| $/GB | $0.0444 | $0.0350 |
| Price | $354.99 | $279.99 |
| Retailer | Newegg | Best Buy |
| Category | Hard Drives (HDD) | Hard Drives (HDD) |
| Subcategory | hdd | hdd |
Price Across Retailers
Which Should You Buy?
Based on current pricing data, the Seagate - Expansion Desktop 8TB HDD - Black offers better value at $0.0350//GB compared to the WD Red Plus 8TB 5640 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives -WD80EFPX at $0.0444//GB — that's roughly 21% less per gigabyte.
The best deal for the Seagate - Expansion Desktop 8TB HDD - Black is $279.99 at Best Buy, while the WD Red Plus 8TB 5640 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives -WD80EFPX starts at $354.99 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 Red Plus 8TB 5640 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives -WD80EFPX and Seagate - Expansion Desktop 8TB HDD - Black product page for detailed specifications and price history.
Frequently Asked Questions
Is WD Red Plus 8TB 5640 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives -WD80EFPX or Seagate - Expansion Desktop 8TB HDD - Black a better deal?
As of July 2026, Seagate - Expansion Desktop 8TB HDD - Black offers better value at $0.0350//GB compared to WD Red Plus 8TB 5640 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives -WD80EFPX at $0.0444//GB. That is approximately 21% better value per gigabyte.
What is the price per GB of WD Red Plus 8TB 5640 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives -WD80EFPX?
The WD Red Plus 8TB 5640 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives -WD80EFPX is currently priced at $0.0444/GB ($354.99 for 8TB) at Newegg.
Where can I buy Seagate - Expansion Desktop 8TB HDD - Black for the cheapest price?
The cheapest price for the Seagate - Expansion Desktop 8TB HDD - Black is $279.99 at Best Buy, which works out to $0.0350/GB.