Seagate vs Toshiba Hard Drives (HDD)

Side-by-side price per gigabyte comparison across 349 products.

As of August 2026, Seagate averages $0.1221/GB across 257 products while Toshiba averages $0.1817/GB across 92 products on BuyPerUnit. Seagate offers 33% better value per gigabyte for hard drives (hdd).

Seagate

Better Value

Avg $/GB$0.1221

Best $/GB$0.0279

Price Range$0.0279 – $3.1289

Products257

Cheapest Product

Seagate Exos X20z ST20000NM001J 20TB 7.2K RPM SATA 6Gb/s 3.5 (HOST MANAGED SMR)

20TB · $559.00 · newegg

Toshiba

Avg $/GB$0.1817

Best $/GB$0.0335

Price Range$0.0335 – $2.5048

Products92

Cheapest Product

TOSHIBA MD04ACA400 4TB 7200 RPM 128MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive

4TB · $133.80 · newegg

Top Products Compared

Rank	Brand	Product	Capacity	$/GB	Price	Retailer
1	Seagate	Seagate Exos X20z ST20000NM001J 20TB 7.2K RPM SATA 6Gb/s 3.5 (HOST MANAGED SMR)	20TB	$0.0279	$559.00	newegg
1	Toshiba	TOSHIBA MD04ACA400 4TB 7200 RPM 128MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive	4TB	$0.0335	$133.80	newegg
2	Seagate	Seagate Expansion Desktop 16TB External Hard Drive – USB 3.0, 3.5" HDD for Windows & Mac, Plug-and-Play Backup Storage - STKP16000400	16 TB	$0.0301	$481.81	amazon
2	Toshiba	TOSHIBA MD04ACA400 4TB 7200 RPM 128MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive	4TB	$0.0338	$135.00	newegg
3	Seagate	Seagate BarraCuda ST24000DM001 24TB 7200 RPM SATA 6.0Gb/s 3.5' Hard Drive Bare Drive	24TB	$0.0307	$737.91	newegg
3	Toshiba	4TB Toshiba P300 3.5 Inch Serial ATA III 5400RPM 6GB Internal Hard Drive	4TB	$0.0358	$143.40	newegg
4	Seagate	Seagate BarraCuda ST24000DM001 24TB 7200 RPM SATA 6.0Gb/s 3.5' Hard Drive Bare Drive	24TB	$0.0313	$749.99	newegg
4	Toshiba	Toshiba-IMSourcing MG04ACA 6 TB 3.5' Internal Hard Drive - SATA - 7200rpm - 128 MB Buffer	6TB	$0.0386	$231.62	newegg
5	Seagate	Seagate - Barracuda 8TB Internal Hard Drive for Desktops	8 TB	$0.0325	$259.99	bestbuy
5	Toshiba	Toshiba-IMSourcing MG04ACA 6 TB 3.5' Internal Hard Drive - SATA - 7200rpm - 128 MB Buffer	6TB	$0.0389	$233.10	newegg

Which Should You Buy?

Based on current pricing data, Seagate offers better overall value for hard drives (hdd) at an average of $0.1221/GB compared to Toshiba's $0.1817/GB — that's roughly 33% less per gigabyte.

Seagate's best deal is the Seagate Exos X20z ST20000NM001J 20TB 7.2K RPM SATA 6Gb/s 3.5 (HOST MANAGED SMR) (20TB) at $0.0279/GB, while Toshiba's cheapest option is the TOSHIBA MD04ACA400 4TB 7200 RPM 128MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive (4TB) at $0.0335/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 Toshiba cheaper per GB for hard drives (hdd)?

As of August 2026, Seagate averages $0.1221/GB compared to Toshiba at $0.1817/GB. Seagate is approximately 33% cheaper per gigabyte on average.

How many Seagate and Toshiba hard drives (hdd) does BuyPerUnit track?

BuyPerUnit currently tracks 257 Seagate products and 92 Toshiba products in the hard drives (hdd) category, all ranked by price per gigabyte.

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

The cheapest Seagate option is the Seagate Exos X20z ST20000NM001J 20TB 7.2K RPM SATA 6Gb/s 3.5 (HOST MANAGED SMR) at $0.0279/GB ($559.00 for 20TB).

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

The cheapest Toshiba option is the TOSHIBA MD04ACA400 4TB 7200 RPM 128MB Cache SATA 6.0Gb/s 3.5' Internal Hard Drive at $0.0335/GB ($133.80 for 4TB).

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