SanDisk vs Sp Silicon Power Hard Drives & SSDs

Side-by-side price per gigabyte comparison across 169 products.

As of March 2026, SanDisk averages $1.1078/GB across 159 products while Sp Silicon Power averages $0.1534/GB across 10 products on BuyPerUnit. Sp Silicon Power offers 86% better value per gigabyte for hard drives & ssds.

SanDisk

Avg $/GB$1.1078
Best $/GB$0.0925
Price Range$0.0925 – $47.8109
Products159

Sp Silicon Power

Better Value
Avg $/GB$0.1534
Best $/GB$0.0900
Price Range$0.0900 – $0.2304
Products10

Top Products Compared

RankBrandProductCapacity$/GBPriceRetailer
1SanDiskSANDISK - 8TB Desk Drive USB Type-C Desktop External SSD - Black8 TB$0.0925$739.99bestbuy
1Sp Silicon PowerSP 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$0.0900$359.97amazon
2SanDiskSANDISK - Extreme Portable 4TB External USB-C NVMe SSD - Black4 TB$0.1125$449.99bestbuy
2Sp Silicon PowerSilicon Power 2TB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5" 7mm (0.28") SSD Internal Solid State Drive (SU002TBSS3A55S25EC)2 TB$0.1100$219.97amazon
3SanDiskSanDisk 4TB Extreme Portable SSD - Up to 1050MB/s, USB-C, USB 3.2 Gen 2, IP65 Water and Dust Resistance, Updated Firmware - External Solid State Drive - SDSSDE61-4T00-G254 TB$0.1125$449.99amazon
3Sp Silicon PowerSilicon Power 2TB NVMe M.2 PCIe Gen3x4 2280 SSD Solid State Drive (SP002TBP34A60M28)2 TB$0.1350$269.97amazon
4SanDiskSANDISK - 2TB Creator Phone SSD External USB Type C Drive with Magsafe Compatibility for iPhone 15/16 - Blue2 TB$0.1150$229.99bestbuy
4Sp Silicon PowerSilicon Power 1TB A55 M.2 SATA M+B Key SSD Internal Solid State Drive 2280 SU001TBSS3A55M28AB1 TB$0.1400$139.97amazon
5SanDiskSanDisk 2TB Portable SSD - Up to 800MB/s, USB-C, USB 3.2 Gen 2, Updated Firmware - External Solid State Drive - SDSSDE30-2T00-G262 TB$0.1163$232.57amazon
5Sp Silicon PowerSP 1TB SSD 3D NAND A55 SLC Cache Performance Boost SATA III 2.5" 7mm (0.28") Internal Solid State Drive (SP001TBSS3A55S25)1 TB$0.1440$143.97amazon

Which Should You Buy?

Based on current pricing data, Sp Silicon Power offers better overall value for hard drives & ssds at an average of $0.1534/GB compared to SanDisk's $1.1078/GB — that's roughly 86% less per gigabyte.

Sp Silicon Power's best deal 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, while SanDisk's cheapest option is the SANDISK - 8TB Desk Drive USB Type-C Desktop External SSD - Black (8 TB) at $0.0925/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 Sp Silicon Power cheaper per GB for hard drives & ssds?

As of March 2026, Sp Silicon Power averages $0.1534/GB compared to SanDisk at $1.1078/GB. Sp Silicon Power is approximately 86% cheaper per gigabyte on average.

How many SanDisk and Sp Silicon Power hard drives & ssds does BuyPerUnit track?

BuyPerUnit currently tracks 159 SanDisk products and 10 Sp Silicon Power products in the hard drives & ssds category, all ranked by price per gigabyte.

What is the cheapest SanDisk hard drives & ssd per GB?

The cheapest SanDisk option is the SANDISK - 8TB Desk Drive USB Type-C Desktop External SSD - Black at $0.0925/GB ($739.99 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).

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