SanDisk vs Silicon Power Hard Drives (HDD)
Side-by-side price per gigabyte comparison across 16 products.
As of July 2026, SanDisk averages $0.1130/GB across 8 products while Silicon Power averages $0.0979/GB across 8 products on BuyPerUnit. Silicon Power offers 13% better value per gigabyte for hard drives (hdd).
SanDisk
Cheapest Product
SanDisk Professional 22TB G-DRIVE PROJECT Thunderbolt 3 External Hard Drive22TB · $1334.99 · newegg
Silicon Power
Better ValueCheapest Product
4TB Silicon Power Armor A60 Shockproof Portable Hard Drive - USB3.2 - All-Black Edition4TB · $232.99 · newegg
Top Products Compared
Which Should You Buy?
Based on current pricing data, Silicon Power offers better overall value for hard drives (hdd) at an average of $0.0979/GB compared to SanDisk's $0.1130/GB — that's roughly 13% less per gigabyte.
Silicon Power's best deal is the 4TB Silicon Power Armor A60 Shockproof Portable Hard Drive - USB3.2 - All-Black Edition (4TB) at $0.0582/GB, while SanDisk's cheapest option is the SanDisk Professional 22TB G-DRIVE PROJECT Thunderbolt 3 External Hard Drive (22TB) at $0.0607/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 SanDisk or Silicon Power cheaper per GB for hard drives (hdd)?
As of July 2026, Silicon Power averages $0.0979/GB compared to SanDisk at $0.1130/GB. Silicon Power is approximately 13% cheaper per gigabyte on average.
How many SanDisk and Silicon Power hard drives (hdd) does BuyPerUnit track?
BuyPerUnit currently tracks 8 SanDisk products and 8 Silicon Power products in the hard drives (hdd) category, all ranked by price per gigabyte.
What is the cheapest SanDisk hard drives (hdd) per GB?
The cheapest SanDisk option is the SanDisk Professional 22TB G-DRIVE PROJECT Thunderbolt 3 External Hard Drive at $0.0607/GB ($1334.99 for 22TB).
What is the cheapest Silicon Power hard drives (hdd) per GB?
The cheapest Silicon Power option is the 4TB Silicon Power Armor A60 Shockproof Portable Hard Drive - USB3.2 - All-Black Edition at $0.0582/GB ($232.99 for 4TB).