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Seasonic Prime TX-1600 — 1600 W · Titanium
Seasonic

Seasonic Prime TX-1600

1600 W · Titanium

95
/ 100
From $549
VS
Seasonic Prime TX-1600 wins by 2
Seasonic Vertex PX-1200 — 1200 W · 80+ Platinum · ATX 3.0
Seasonic

Seasonic Vertex PX-1200

1200 W · 80+ Platinum · ATX 3.0

93
/ 100
From $289
Specdex verdict

Seasonic Prime TX-1600 takes it — here’s why.

In our weighted Specdex score, Seasonic Prime TX-1600 lands at 95 and Seasonic Vertex PX-1200 at 93. That puts Seasonic Prime TX-1600 ahead by 2 points — a narrow margin driven mostly by its strengths in the categories below.

Pick Seasonic Prime TX-1600 if…

  • ✓Modular cabling on most
  • ✓ATX 3.1 / 12V-2x6 support
  • ✓10-year warranty on many

Pick Seasonic Vertex PX-1200 if…

  • ✓Rock-solid ripple
  • ✓Platinum efficiency
  • ✓Long 12-year warranty
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Winner by scenario

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

Efficiency

Tie

Compared on the efficiency sub-score

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

Noise

Seasonic Vertex PX-1200

Compared on the noise sub-score

Seasonic Vertex PX-1200 leads on noise (92 vs 86).

Cables

Seasonic Vertex PX-1200

Compared on the cables sub-score

Seasonic Vertex PX-1200 leads on cables (90 vs 86).

Value for money

Seasonic Vertex PX-1200

Specdex score per dollar at MSRP

Seasonic Vertex PX-1200 more score per dollar ($289 vs $549).

Seasonic Prime TX-1600 95
vs
93 Seasonic Vertex PX-1200

Score breakdown

Seasonic Prime TX-1600
95
efficiency 95
noise 86
cables 86
value 84
Seasonic Vertex PX-1200
93
efficiency 96
noise 92
cables 90
value 86

Specs side-by-side

Seasonic Prime TX-1600 versus Seasonic Vertex PX-1200 — full spec comparison
Spec Seasonic Prime TX-1600 Seasonic Vertex PX-1200
Wattage
1600 W
1200 W
Efficiency
Titanium
80+ Platinum
Standard
—
ATX 3.0
Connectors
—
1× 16-pin 12VHPWR (600W)

Seasonic Prime TX-1600

Pros
  • +Modular cabling on most
  • +ATX 3.1 / 12V-2x6 support
  • +10-year warranty on many
Cons
  • −Bulky on higher wattages
  • −Fan noise varies by load
  • −Cable length may not fit some cases

Seasonic Vertex PX-1200

Pros
  • +Rock-solid ripple
  • +Platinum efficiency
  • +Long 12-year warranty
Cons
  • −Heavy at 2.6 kg
  • −Expensive
  • −Cables stiff

FAQ: Seasonic Prime TX-1600 vs Seasonic Vertex PX-1200

Which is better, Seasonic Prime TX-1600 or Seasonic Vertex PX-1200? +

Seasonic Prime TX-1600 scores 95 on our weighted rubric — ahead by 2. Your best pick depends on the sub-scores above.

Is Seasonic Prime TX-1600 worth the price? +

At $549, Seasonic Prime TX-1600 delivers a Specdex score of 95 — strongest in efficiency.

Is Seasonic Vertex PX-1200 worth the price? +

At $289, Seasonic Vertex PX-1200 delivers a Specdex score of 93 — strongest in efficiency.

Does Seasonic Prime TX-1600 or Seasonic Vertex PX-1200 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 better for noise, Seasonic Prime TX-1600 or Seasonic Vertex PX-1200? +

Seasonic Vertex PX-1200 — leads on noise (92 vs 86). Compared on the noise sub-score.

Which is better for cables, Seasonic Prime TX-1600 or Seasonic Vertex PX-1200? +

Seasonic Vertex PX-1200 — leads on cables (90 vs 86). Compared on the cables sub-score.