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Synology DS423+ — NAS · $499
Synology

Synology DS423+

NAS · $499

86
/ 100
From $499
VS
QNAP TS-673A — NAS · $999
QNAP

QNAP TS-673A

NAS · $999

86
/ 100
From $999
Specdex verdict

Dead heat — it comes down to priorities.

In our weighted Specdex score, Synology DS423+ lands at 86 and QNAP TS-673A at 86. With scores tied, the decision hinges on which sub-scores matter most to you.

Pick Synology DS423+ if…

  • ✓Rich software ecosystem (Synology/QNAP)
  • ✓NVMe cache slots on newer models
  • ✓Docker/VM support on higher tiers

Pick QNAP TS-673A if…

  • ✓Rich software ecosystem (Synology/QNAP)
  • ✓NVMe cache slots on newer models
  • ✓Docker/VM support on higher tiers
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Winner by scenario

Derived from the sub-score breakdown · not a separate test

Performance

Tie

Compared on the performance sub-score

Effectively tied — neither pulls a 2-point weighted lead.

Features

Tie

Compared on the features sub-score

Effectively tied — neither pulls a 2-point weighted lead.

Software

Tie

Compared on the software sub-score

Effectively tied — neither pulls a 2-point weighted lead.

Value for money

Synology DS423+

Specdex score per dollar at MSRP

Synology DS423+ more score per dollar ($499 vs $999).

Synology DS423+ 86
vs
86 QNAP TS-673A

Score breakdown

Synology DS423+
86
performance 86
features 86
software 84
value 82
QNAP TS-673A
86
performance 86
features 86
software 84
value 82

Specs side-by-side

Synology DS423+ versus QNAP TS-673A — full spec comparison
Spec Synology DS423+ QNAP TS-673A

Synology DS423+

Pros
  • +Rich software ecosystem (Synology/QNAP)
  • +NVMe cache slots on newer models
  • +Docker/VM support on higher tiers
Cons
  • −Disks rarely included
  • −Drive compatibility restrictions on some brands
  • −Power draw 24/7

QNAP TS-673A

Pros
  • +Rich software ecosystem (Synology/QNAP)
  • +NVMe cache slots on newer models
  • +Docker/VM support on higher tiers
Cons
  • −Disks rarely included
  • −Drive compatibility restrictions on some brands
  • −Power draw 24/7

FAQ: Synology DS423+ vs QNAP TS-673A

Which is better, Synology DS423+ or QNAP TS-673A? +

Both score 86 on our weighted rubric — tied. Your best pick depends on the sub-scores above.

Is Synology DS423+ worth the price? +

At $499, Synology DS423+ delivers a Specdex score of 86 — strongest in performance.

Is QNAP TS-673A worth the price? +

At $999, QNAP TS-673A delivers a Specdex score of 86 — strongest in performance.

Does Synology DS423+ or QNAP TS-673A last longer? +

Based on our long-term update and support ratings, both ship with multi-year support. Battery and reliability scores are visible in the breakdown above.

Which is the better value, Synology DS423+ or QNAP TS-673A? +

Synology DS423+ — more score per dollar ($499 vs $999). Specdex score per dollar at MSRP.