DatacenterDisk

Samsung 4TB vs WD 4TB

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

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Our Recommendation
👑
Samsung 4TB 990 PRO 2 TB .0 7 450

Samsung 4TB 990 PRO 2 TB .0 7 450 wins on both price ($93.74/TB) and warranty (5 years).

Best $/TB: Samsung
Best Warranty: WD
Best for RAID: Samsung
Full Specification Comparison
Spec
Samsung
4TB 990 PRO 2 TB .0 7 450
$93.74/TB
WD
4TB WD_Black SN8100 2TB .0x4 2280 Up to
$100.00/TB
Brand
Samsung
WD
Model
4TB 990 PRO 2 TB .0 7 450
4TB WD_Black SN8100 2TB .0x4 2280 Up to
Series
—
—
Part Number
B0B9C4DKKG
B0F3BD1W6R
$/TB
👑$93.74
$100.00
Price
$374.95
$399.99
Condition
New
New
Capacity
4TB
4TB
Interface
NVMe-PCIe4
NVMe-PCIe4
Form Factor
M.2 2280
M.2 2280
Drive Type
PS5-SSD
PS5-SSD
Recording Tech
—
—
RPM
N/A (SSD)
N/A (SSD)
Cache
—
—
Sector Size
—
—
Workload Rating
—
—
DWPD
N/A
N/A
Warranty
👑5 years
👑5 years
Workload Tier
ps5
ps5
In Stock
Check
✓ In Stock
Buy
Buy on Amazon →
Buy on Amazon →
Workload Fit
Workload
Samsung
WD
NAS Storage
○
○
Backup Target
●
●
OLTP Database
●●●
●●●
Cold Archive
●
●
Virtualization
●●●
●●●
AI/ML Storage
●●●
●●●
Buying Recommendation
Choose Samsung 4TB 990 PRO 2 TB .0 7 450 if:
  • ✓ You need maximum storage per dollar
  • ✓ You need new-with-warranty for compliance or budgeting
Buy Samsung →
Choose WD 4TB WD_Black SN8100 2TB .0x4 2280 Up to if:
  • ✓ You need 5-year warranty coverage for production
  • ✓ You need new-with-warranty for compliance or budgeting
Buy WD →

Frequently Asked Questions

Samsung 4TB offers better value at $93.74/TB vs $100.00/TB - a 6% 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 5-year warranties and are built for enterprise operation. Check brand-specific AFR data and Backblaze drive stats for real-world failure rate comparisons.

Samsung 4TB is the better fit for NAS storage.