Silicon Power vs Western Digital Hard Drives & SSDs
Side-by-side price per gigabyte comparison across 99 products.
As of March 2026, Silicon Power averages $0.1587/GB across 1 products while Western Digital averages $0.1167/GB across 98 products on BuyPerUnit. Western Digital offers 26% better value per gigabyte for hard drives & ssds.
Silicon Power
Cheapest Product
SSD Solid State Drive 2.5'' R-Rem-SLL-A55 For SP Silicon Power A55 256GB A 55256GB · $40.63 · newegg
Western Digital
Better ValueTop Products Compared
| Rank | Brand | Product | Capacity | $/GB | Price | Retailer |
|---|---|---|---|---|---|---|
| 1 | Silicon Power | SSD Solid State Drive 2.5'' R-Rem-SLL-A55 For SP Silicon Power A55 256GB A 55 | 256GB | $0.1587 | $40.63 | newegg |
| 1 | Western Digital | WD - easystore 18TB External USB 3.0 Hard Drive - Black | 18 TB | $0.0217 | $389.99 | bestbuy |
| 2 | Western Digital | WD - easystore 20TB External USB 3.0 Hard Drive - Black | 20 TB | $0.0220 | $439.99 | bestbuy |
| 3 | Western Digital | WD 16TB My Book Desktop External Hard Drive, USB 3.0, External HDD with Password Protection and Backup Software - WDBBGB0160HBK-NESN | 16 TB | $0.0225 | $360.49 | amazon |
| 4 | Western Digital | WD 18TB My Book Desktop External Hard Drive, USB 3.0, External HDD with Password Protection and Auto Backup Software - WDBBGB0180HBK-NESN | 18 TB | $0.0233 | $419.99 | amazon |
| 5 | Western Digital | Western Digital 10TB WD Blue Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, 512 MB Cache, 3.5" - WD100EAGZ | 10 TB | $0.0240 | $239.99 | amazon |
Which Should You Buy?
Based on current pricing data, Western Digital offers better overall value for hard drives & ssds at an average of $0.1167/GB compared to Silicon Power's $0.1587/GB — that's roughly 26% less per gigabyte.
Western Digital's best deal is the WD - easystore 18TB External USB 3.0 Hard Drive - Black (18 TB) at $0.0217/GB, while Silicon Power's cheapest option is the SSD Solid State Drive 2.5'' R-Rem-SLL-A55 For SP Silicon Power A55 256GB A 55 (256GB) at $0.1587/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 Silicon Power or Western Digital cheaper per GB for hard drives & ssds?
As of March 2026, Western Digital averages $0.1167/GB compared to Silicon Power at $0.1587/GB. Western Digital is approximately 26% cheaper per gigabyte on average.
How many Silicon Power and Western Digital hard drives & ssds does BuyPerUnit track?
BuyPerUnit currently tracks 1 Silicon Power products and 98 Western Digital products in the hard drives & ssds category, all ranked by price per gigabyte.
What is the cheapest Silicon Power hard drives & ssd per GB?
The cheapest Silicon Power option is the SSD Solid State Drive 2.5'' R-Rem-SLL-A55 For SP Silicon Power A55 256GB A 55 at $0.1587/GB ($40.63 for 256GB).
What is the cheapest Western Digital hard drives & ssd per GB?
The cheapest Western Digital option is the WD - easystore 18TB External USB 3.0 Hard Drive - Black at $0.0217/GB ($389.99 for 18 TB).