Seagate vs Wd_black Hard Drives & SSDs
Side-by-side price per gigabyte comparison across 44 products.
As of March 2026, Seagate averages $0.0641/GB across 43 products while Wd_black averages $0.1650/GB across 1 products on BuyPerUnit. Seagate offers 61% better value per gigabyte for hard drives & ssds.
Seagate
Better ValueCheapest Product
Seagate Expansion 8TB External Hard Drive HDD - USB 3.0, with Rescue Data Recovery Services (STKP8000400)8 TB · $195.35 · amazon
Wd_black
Cheapest Product
WD_BLACK 2TB SN850P NVMe M.2 SSD Officially Licensed Storage Expansion for PS5 Consoles, up to 7,300MB/s, with heatsink - WDBBYV0020BNC-WRSN2 TB · $329.99 · amazon
Top Products Compared
| Rank | Brand | Product | Capacity | $/GB | Price | Retailer |
|---|---|---|---|---|---|---|
| 1 | Seagate | Seagate Expansion 8TB External Hard Drive HDD - USB 3.0, with Rescue Data Recovery Services (STKP8000400) | 8 TB | $0.0244 | $195.35 | amazon |
| 1 | Wd_black | WD_BLACK 2TB SN850P NVMe M.2 SSD Officially Licensed Storage Expansion for PS5 Consoles, up to 7,300MB/s, with heatsink - WDBBYV0020BNC-WRSN | 2 TB | $0.1650 | $329.99 | amazon |
| 2 | Seagate | Seagate - Game Drive for Xbox 8TB External USB 3.2 Gen 1 Desktop Hard Drive with Certified Xbox Green LED Lighting - Black | 8 TB | $0.0250 | $199.99 | bestbuy |
| 3 | Seagate | Seagate - Barracuda 8TB Internal Hard Drive for Desktops | 8 TB | $0.0250 | $199.99 | bestbuy |
| 4 | Seagate | Seagate - IronWolf Pro 16TB NAS Internal Hard Drive with Rescue Data Recovery Services | 16 TB | $0.0250 | $399.99 | bestbuy |
| 5 | Seagate | Seagate BarraCuda 8 TB Internal Hard Drive HDD – 3.5 Inch SATA 6 Gb/s, 5,400 RPM, 256 MB Cache for Computer Desktop PC (ST8000DMZ04/004) | 8 TB | $0.0250 | $199.99 | amazon |
Which Should You Buy?
Based on current pricing data, Seagate offers better overall value for hard drives & ssds at an average of $0.0641/GB compared to Wd_black's $0.1650/GB — that's roughly 61% less per gigabyte.
Seagate's best deal is the Seagate Expansion 8TB External Hard Drive HDD - USB 3.0, with Rescue Data Recovery Services (STKP8000400) (8 TB) at $0.0244/GB, while Wd_black's cheapest option is the WD_BLACK 2TB SN850P NVMe M.2 SSD Officially Licensed Storage Expansion for PS5 Consoles, up to 7,300MB/s, with heatsink - WDBBYV0020BNC-WRSN (2 TB) at $0.1650/GB.
However, price per GB isn't everything — consider factors like warranty, performance specs, and your specific capacity needs. Check individual product pages for detailed specifications.
Frequently Asked Questions
Is Seagate or Wd_black cheaper per GB for hard drives & ssds?
As of March 2026, Seagate averages $0.0641/GB compared to Wd_black at $0.1650/GB. Seagate is approximately 61% cheaper per gigabyte on average.
How many Seagate and Wd_black hard drives & ssds does BuyPerUnit track?
BuyPerUnit currently tracks 43 Seagate products and 1 Wd_black products in the hard drives & ssds category, all ranked by price per gigabyte.
What is the cheapest Seagate hard drives & ssd per GB?
The cheapest Seagate option is the Seagate Expansion 8TB External Hard Drive HDD - USB 3.0, with Rescue Data Recovery Services (STKP8000400) at $0.0244/GB ($195.35 for 8 TB).
What is the cheapest Wd_black hard drives & ssd per GB?
The cheapest Wd_black option is the WD_BLACK 2TB SN850P NVMe M.2 SSD Officially Licensed Storage Expansion for PS5 Consoles, up to 7,300MB/s, with heatsink - WDBBYV0020BNC-WRSN at $0.1650/GB ($329.99 for 2 TB).