Silicon Power vs Western Digital Hard Drives (HDD)

Side-by-side price per gigabyte comparison across 219 products.

As of June 2026, Silicon Power averages $0.0889/GB across 6 products while Western Digital averages $0.0820/GB across 213 products on BuyPerUnit. Western Digital offers 8% better value per gigabyte for hard drives (hdd).

Silicon Power

Avg $/GB$0.0889

Best $/GB$0.0592

Price Range$0.0592 – $0.1340

Products6

Cheapest Product

4TB Silicon Power Armor A60 Shockproof Portable Hard Drive - USB3.2 - All-Black Edition

4TB · $236.99 · newegg

Western Digital

Better Value

Avg $/GB$0.0820

Best $/GB$0.0168

Price Range$0.0168 – $1.3500

Products213

Cheapest Product

WD Elements 16TB USB 3.0 Desktop External Hard Drive Black

16TB · $268.94 · newegg

Top Products Compared

Rank	Brand	Product	Capacity	$/GB	Price	Retailer
1	Silicon Power	4TB Silicon Power Armor A60 Shockproof Portable Hard Drive - USB3.2 - All-Black Edition	4TB	$0.0592	$236.99	newegg
1	Western Digital	WD Elements 16TB USB 3.0 Desktop External Hard Drive Black	16TB	$0.0168	$268.94	newegg
2	Silicon Power	5TB Silicon Power Armor A60 Shockproof Portable Hard Drive - USB3.0 - Black/Green Edition	5TB	$0.0610	$304.99	newegg
2	Western Digital	WD2003FYYS-18W0B0 - DELL WD2003FYYS-18W0B0 DELL 2TB 7.2K 3G LFF SATA HARD DRIVE	2TB	$0.0265	$52.95	newegg
3	Silicon Power	Silicon Power 2TB Armor A60 Shockproof and Water-Resistant Portable Hard Drive USB 3.0 Model SP020TBPHDA60S3K Black	2TB	$0.0875	$174.99	newegg
3	Western Digital	WD - easystore 18TB External USB 3.0 Hard Drive - Black	18 TB	$0.0283	$509.99	bestbuy
4	Silicon Power	2TB Silicon Power Armor A60 Shockproof Portable Hard Drive - USB3.2 - All-Black Edition	2TB	$0.0880	$175.99	newegg
4	Western Digital	Western Digital 12TB WD Red Plus NAS Internal Hard Drive HDD - 7200 RPM, SATA 6 GB/s, CMR, 512 MB Cache, 3.5" - WD120EFGX	12 TB	$0.0298	$357.99	amazon
5	Silicon Power	Silicon Power 2TB Armor A80 Portable Hard Drive USB 3.0 Model SP020TBPHDA80S3B Blue	2TB	$0.1035	$206.99	newegg
5	Western Digital	WD 12TB My Book Desktop External Hard Drive, USB 3.0, External HDD with Password Protection and Auto Backup Software - WDBBGB0120HBK-NESN	12 TB	$0.0305	$366.10	amazon

Which Should You Buy?

Based on current pricing data, Western Digital offers better overall value for hard drives (hdd) at an average of $0.0820/GB compared to Silicon Power's $0.0889/GB — that's roughly 8% less per gigabyte.

Western Digital's best deal is the WD Elements 16TB USB 3.0 Desktop External Hard Drive Black (16TB) at $0.0168/GB, while Silicon Power's cheapest option is the 4TB Silicon Power Armor A60 Shockproof Portable Hard Drive - USB3.2 - All-Black Edition (4TB) at $0.0592/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 (hdd)?

As of June 2026, Western Digital averages $0.0820/GB compared to Silicon Power at $0.0889/GB. Western Digital is approximately 8% cheaper per gigabyte on average.

How many Silicon Power and Western Digital hard drives (hdd) does BuyPerUnit track?

BuyPerUnit currently tracks 6 Silicon Power products and 213 Western Digital products in the hard drives (hdd) category, all ranked by price per gigabyte.

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 $0.0592/GB ($236.99 for 4TB).

What is the cheapest Western Digital hard drives (hdd) per GB?

The cheapest Western Digital option is the WD Elements 16TB USB 3.0 Desktop External Hard Drive Black at $0.0168/GB ($268.94 for 16TB).

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