Seagate vs Sp Silicon Power Hard Drives & SSDs
Side-by-side price per gigabyte comparison across 53 products.
As of March 2026, Seagate averages $0.0641/GB across 43 products while Sp Silicon Power averages $0.1534/GB across 10 products on BuyPerUnit. Seagate offers 58% 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
Sp Silicon Power
Cheapest Product
SP Silicon Power 4TB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5'' 7mm (0.28'') Internal Solid State Drive (SP004TBSS3A55S25)4 TB · $359.97 · amazon
Top Products Compared
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 Sp Silicon Power's $0.1534/GB — that's roughly 58% 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 Sp Silicon Power's cheapest option is the SP Silicon Power 4TB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5'' 7mm (0.28'') Internal Solid State Drive (SP004TBSS3A55S25) (4 TB) at $0.0900/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 Sp Silicon Power cheaper per GB for hard drives & ssds?
As of March 2026, Seagate averages $0.0641/GB compared to Sp Silicon Power at $0.1534/GB. Seagate is approximately 58% cheaper per gigabyte on average.
How many Seagate and Sp Silicon Power hard drives & ssds does BuyPerUnit track?
BuyPerUnit currently tracks 43 Seagate products and 10 Sp Silicon Power 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 Sp Silicon Power hard drives & ssd per GB?
The cheapest Sp Silicon Power option is the SP Silicon Power 4TB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5'' 7mm (0.28'') Internal Solid State Drive (SP004TBSS3A55S25) at $0.0900/GB ($359.97 for 4 TB).