The WD Purple WD180PURZ 18TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5' Hard Drive costs $0.0327/GB while the Seagate SkyHawk AI ST18000VE002 18 TB Hard Drive 3.5' Internal SATA SATA/600 costs $0.0369/GB. WD Purple WD180PURZ 18TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5' Hard Drive offers 11% better value per gigabyte as of August 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
WD Purple WD180PURZ 18TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5' Hard Drive vs Seagate SkyHawk AI ST18000VE002 18 TB Hard Drive 3.5' Internal SATA SATA/600 — Which Is Better Value?
WD Purple WD180PURZ 18TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5' Hard Drive
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Specification Comparison
| Spec | WD Purple WD180PURZ 18TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5' Hard Drive | Seagate SkyHawk AI ST18000VE002 18 TB Hard Drive 3.5' Internal SATA SATA/600 |
|---|---|---|
| Brand | Western Digital | Seagate |
| Capacity | 18TB | 18TB |
| $/GB | $0.0327 | $0.0369 |
| Price | $589.00 | $665.10 |
| Retailer | Newegg | Newegg |
| Category | Hard Drives (HDD) | Hard Drives (HDD) |
| Subcategory | hdd | hdd |
Price Across Retailers
Which Should You Buy?
Based on current pricing data, the WD Purple WD180PURZ 18TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5' Hard Drive offers better value at $0.0327//GB compared to the Seagate SkyHawk AI ST18000VE002 18 TB Hard Drive 3.5' Internal SATA SATA/600 at $0.0369//GB — that's roughly 11% less per gigabyte.
The best deal for the WD Purple WD180PURZ 18TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5' Hard Drive is $589.00 at Newegg, while the Seagate SkyHawk AI ST18000VE002 18 TB Hard Drive 3.5' Internal SATA SATA/600 starts at $665.10 at Newegg.
However, price per gigabyte isn't everything — consider factors like warranty, performance specs, brand reliability, and your specific capacity needs. Check each WD Purple WD180PURZ 18TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5' Hard Drive and Seagate SkyHawk AI ST18000VE002 18 TB Hard Drive 3.5' Internal SATA SATA/600 product page for detailed specifications and price history.
Frequently Asked Questions
Is WD Purple WD180PURZ 18TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5' Hard Drive or Seagate SkyHawk AI ST18000VE002 18 TB Hard Drive 3.5' Internal SATA SATA/600 a better deal?
As of August 2026, WD Purple WD180PURZ 18TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5' Hard Drive offers better value at $0.0327//GB compared to Seagate SkyHawk AI ST18000VE002 18 TB Hard Drive 3.5' Internal SATA SATA/600 at $0.0369//GB. That is approximately 11% better value per gigabyte.
What is the price per GB of WD Purple WD180PURZ 18TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5' Hard Drive?
The WD Purple WD180PURZ 18TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5' Hard Drive is currently priced at $0.0327/GB ($589.00 for 18TB) at Newegg.
Where can I buy Seagate SkyHawk AI ST18000VE002 18 TB Hard Drive 3.5' Internal SATA SATA/600 for the cheapest price?
The cheapest price for the Seagate SkyHawk AI ST18000VE002 18 TB Hard Drive 3.5' Internal SATA SATA/600 is $665.10 at Newegg, which works out to $0.0369/GB.