DatacenterDisk

WD WD vs WD WD

Side-by-side spec and price comparison. Live data from Amazon US.

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Our Recommendation
👑
WD WD Purple 1TB WD10PURX

WD WD Purple 1TB WD10PURX offers the best value at $147.06/TB. Available new with manufacturer warranty.

Best $/TB: WD
Best Warranty: WD
Best for RAID: WD
Full Specification Comparison
Spec
WD
WD Red Legacy 1TB WD10EFRX
$181.99/TB
WD
WD Purple 1TB WD10PURX
$147.06/TB
Brand
WD
WD
Model
WD Red Legacy 1TB WD10EFRX
WD Purple 1TB WD10PURX
Series
WD Red Legacy
WD Purple
Part Number
WD10EFRX
WD10PURX
$/TB
$181.99
👑$147.06
Price
$181.99
$147.06
Condition
New
New
Capacity
1TB
1TB
Interface
SATA-6G
SATA-6G
Form Factor
3.5"
3.5"
Drive Type
HDD
HDD
Recording Tech
CMR
—
RPM
N/A (SSD)
N/A (SSD)
Cache
—
—
Sector Size
—
—
Workload Rating
—
—
DWPD
N/A
N/A
Warranty
—
—
Workload Tier
—
—
In Stock
✓ In Stock
Check
Buy
Buy on Amazon →
Buy on Amazon →
Workload Fit
Workload
WD
WD
NAS Storage
●●●
●●●
Backup Target
●●●
●●●
OLTP Database
●
●
Cold Archive
●
●
Virtualization
●
●
AI/ML Storage
●
●
Buying Recommendation
Choose WD WD Red Legacy 1TB WD10EFRX if:
  • ✓ You're building a RAID array and need guaranteed CMR compatibility
  • ✓ You need new-with-warranty for compliance or budgeting
Buy WD →
Choose WD WD Purple 1TB WD10PURX if:
  • ✓ You need maximum storage per dollar
  • ✓ You need new-with-warranty for compliance or budgeting
Buy WD →

Frequently Asked Questions

WD WD offers better value at $147.06/TB vs $181.99/TB - a 19% price difference. Factor in warranty length and workload rating when the price gap is small.

Mixing drives of different models in RAID is not recommended even if capacities match. Different firmware, error handling and seek patterns can cause rebuild issues. Use identical drives within the same RAID group for reliable operation.

Both drives carry similar warranty terms and are built for enterprise operation. Check brand-specific AFR data and Backblaze drive stats for real-world failure rate comparisons.

WD WD is the better fit for NAS storage. It uses CMR recording which is safe for all RAID levels. SATA interface is compatible with all NAS platforms including Synology, QNAP and TrueNAS.