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Seagate IronWolf Pro ST6000NE000 vs WD Red Pro 4TB WD4005FFBX

Researched, not hands-on tested.How we review ›

all judged against NAS hard drives at a similar price

The WD Red Pro 4TB WD4005FFBX scores 7.9/10 overall, ahead of the Seagate IronWolf Pro ST6000NE000 at 7.0/10.

The Seagate IronWolf Pro ST6000NE000 leads on warranty.

The WD Red Pro 4TB WD4005FFBX leads on reliability ratings and recording technology.

They score the same on performance and noise and power.

The biggest difference is recording technology, where the WD Red Pro 4TB WD4005FFBX scores 9/10 to the Seagate IronWolf Pro ST6000NE000's 6/10.

Seagate IronWolf Pro ST6000NE000

7.0/10verdict: buy

The IronWolf Pro ST6000NE000 is a 6TB drive for multi-bay NAS builds that want a 5-year warranty and a 300 TB/year workload rating. It suits people who value 5-year cover and bundled data recovery over low noise. It fits a rack or tower NAS where the drive sits away from living space.

Typically about £230 in the UK when we researched itCheck price at Amazon UK (opens in a new tab, affiliate link)

Affiliate link. As an Amazon Associate I earn from qualifying purchases. Details

WD Red Pro 4TB NAS Hard Drive (WD4005FFBX)

WD Red Pro 4TB WD4005FFBX

7.9/10verdict: buy

The WD Red Pro 4TB suits people building a multi-bay NAS or RAID array who want a drive rated for heavy workloads. It lists CMR recording, a 5-year warranty and a 550TB/year workload rating. Buyers who want a quiet, low-power drive or included data recovery should look at the trade-offs first.

Typically about £259.99 in the UK when we researched itCheck price at Amazon UK (opens in a new tab, affiliate link)

Affiliate link. As an Amazon Associate I earn from qualifying purchases. Details

Scores, criterion by criterion

CriterionWeightSeagate IronWolf Pro ST6000NE000WD Red Pro 4TB WD4005FFBX
Reliability ratings25%7/109/10
Recording technology20%6/109/10
Warranty20%10/109/10
Performance20%7/107/10
Noise and power15%4/104/10
Overall7.0/107.9/10

Specifications

SpecSeagate IronWolf Pro ST6000NE000WD Red Pro 4TB WD4005FFBX
Capacity6TB4TB
Spindle speed7,200 rpm7200 RPM
Cache256 MB256MB
Recording (CMR/SMR)PerpendicularCMR
Workload rating300 TB/year550TB/year
MTBF1,200,000 hours2.5 million hours
Rated for baysUp to 24Unlimited (RAID-optimized NAS systems with unlimited # of bays; no numeric count)
Warranty5 years limited5 years limited

Strengths and weaknesses

Seagate IronWolf Pro ST6000NE000

  • + 5-year limited warranty with 2-year data recovery plan
  • + 300 TB/year workload rating and up to 24 bays
  • + 214 MB/s maximum sustained transfer rate
  • − 7,200 rpm spindle speed, with noise rated at 2.7 bels
  • − Data recovery needs registration; availability varies by country
  • − Datasheet lists perpendicular recording without naming CMR or SMR

Skip it if:

  • Buyers placing a NAS in a quiet room where 7,200 rpm noise would bother them
  • Buyers who need CMR confirmed on the datasheet before buying
  • Buyers in a country where the data recovery plan is unavailable and who wanted it
Read the full Seagate IronWolf Pro ST6000NE000 review ›

WD Red Pro 4TB WD4005FFBX

  • + CMR recording, listed on the spec table
  • + 550TB/year workload and 2.5 million hour MTBF
  • + Five-year limited warranty
  • − 7200 RPM spindle speed; no noise or power figures listed
  • − Data recovery is not included
  • − Rated for up to 217MB/s sustained

Skip it if:

  • Buyers who need a quiet, low-power drive for a bedroom or living room
  • Buyers who expect data recovery to be included in the price
  • Anyone who wants independent speed or noise measurements for this exact model
Read the full WD Red Pro 4TB WD4005FFBX review ›

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