DatacenterDisk

Seagate BarraCuda vs WD WD

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

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Our Recommendation
👑
Seagate BarraCuda 8TB ST8000DMZ04

Seagate BarraCuda 8TB ST8000DMZ04 offers the best value at $33.07/TB. Available new with manufacturer warranty.

Best $/TB: Seagate
Best Warranty: WD
Best for RAID: WD
Full Specification Comparison
Spec
Seagate
BarraCuda 8TB ST8000DMZ04
$33.07/TB
WD
WD Red Plus 8TB WD80EFBX
$56.25/TB
Brand
Seagate
WD
Model
BarraCuda 8TB ST8000DMZ04
WD Red Plus 8TB WD80EFBX
Series
BarraCuda
WD Red Plus
Part Number
ST8000DMZ04
WD80EFBX
$/TB
👑$33.07
$56.25
Price
$264.57
$450.00
Condition
New
New
Capacity
8TB
8TB
Interface
SATA-6G
SATA-6G
Form Factor
3.5"
3.5"
Drive Type
HDD
HDD
Recording Tech
SMR
CMR
RPM
5,400
N/A (SSD)
Cache
256MB
—
Sector Size
512e
—
Workload Rating
—
—
DWPD
N/A
N/A
Warranty
—
—
Workload Tier
desktop
—
In Stock
✓ In Stock
Check
Buy
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Workload Fit
Workload
Seagate
WD
NAS Storage
●●●
●●●
Backup Target
●●●
●●●
OLTP Database
●
●
Cold Archive
●●
●●
Virtualization
●
●
AI/ML Storage
●
●
Buying Recommendation
Choose Seagate BarraCuda 8TB ST8000DMZ04 if:
  • ✓ You need maximum storage per dollar
  • ✓ You need new-with-warranty for compliance or budgeting
Buy Seagate →
Choose WD WD Red Plus 8TB WD80EFBX if:
  • ✓ You're building a RAID array and need guaranteed CMR compatibility
  • ✓ You need new-with-warranty for compliance or budgeting
Buy WD →

Frequently Asked Questions

Seagate BarraCuda offers better value at $33.07/TB vs $56.25/TB - a 41% 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.

Seagate BarraCuda is the better fit for NAS storage. SATA interface is compatible with all NAS platforms including Synology, QNAP and TrueNAS.