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Seasonic · 1600 W · ATX

Seasonic PRIME PX-1600

ATX 3.1 · 80 PLUS Platinum · Modular

Capability: 98
Cap / price: 20
Wattage value: 26
Amazon: $500

View Seasonic PRIME PX-1600 Gallery in high resolution

Not currently available Updated Aug 21, 2026 Prime FBA

Capability98.3

Capability / price19.7

Wattage value25.6

$500 on Amazon PSU table Compare this PSU

Size this PSU for a complete buildThe Builder unlocks PSU choices after it knows the CPU, GPU, case format, and estimated demand. Calculate build power first

Written analysis

Seasonic PRIME PX-1600 at a glance

The Seasonic PRIME PX-1600 is a 1600 W ATX power supply built to the ATX 3.1 generation. Efficiency is listed as 80 PLUS Platinum. Cables are modular. It supports fan-stop at low load.

The calculated capability score is 98.3, averaging the available wattage, recorded efficiency percentage, and warranty inputs against fixed references. Listed warranty is 12 years. +12V output is 133 A.

Best fit: Systems whose component power budget calls for a supply rated at 1000 W or more.

Platform and cooling

Dimensions are listed as 210 × 150 × 86 mm. Cooling fan size is 135 mm. The unit uses 1 +12V rail at up to 133.00 A per rail. Certifications include 80 PLUS® Platinum.

Current value

At $500, price per kilowatt is $312.49. Capability / price is 19.7 and wattage value is 25.6. Compare nearby supplies below; wattage alone does not determine value.

Unit data

Full specifications

Wattage, efficiency, platform size, electrical outputs, connectors, cooling, and value in one technical sheet.

General

Manufacturer: Seasonic
PSU: Seasonic PRIME PX-1600
Launch price: —
Amazon price: $500
Amazon availability: Not currently available
Price updated: Aug 21, 2026

Power & efficiency

Wattage: 1600 W
Efficiency: 80 PLUS Platinum
Recorded efficiency: 92%
Warranty: 12 years

Value

Amazon price: $500
Price / kW: $312.49
Capability: 98.3
Capability / price: 19.7
Wattage value: 25.6

Platform & size

ATX generation: 3.1
Form factor: ATX
Dimensions: 210 × 150 × 86 mm
Modular: Yes
Fanless: No

Electrical

Input voltage: 100-240
+12V output: 133 A
+5V output: 25 A
+3.3V output: 25 A
+12V rails: 1
Max amps / rail: 133.00 A

Cooling & build

Fan size: 135 mm
Fan stop: Yes
Certifications: 80 PLUS® Platinum

Additional information

Also listed as: PRIME PX-1600

Amazon

Price history

Nearby capability

Similar PSUs

Power supplies close to Seasonic PRIME PX-1600 on calculated capability. Open the PSU table to sort, filter, and compare side by side.

Corsair Corsair HX1500i 1500 W · ATX · Modular

91.1

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Cooler Master Cooler Master X Silent Edge Platinum 850 Fanless 850 W · ATX · Modular

91.5

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$631

MSI MSI MEG Ai1300P 1300 W · ATX · Modular

92.2

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Seasonic Seasonic Prime TX-1300 1300 W · ATX · Modular

92.9

23.2

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$400

Thermaltake Thermaltake Toughpower GF3 1650W 1650 W · ATX · Modular

93.0

30.1

42.7

$309

Seasonic Seasonic PRIME PX-1600 This PSU

98.3

19.7

25.6

$500

Cooler Master Cooler Master V Platinum 1600 V2 1600 W · ATX · Modular

98.6

22.3

29.0

$441

MSI MSI MEG Ai1600T 1600 W · ATX · Modular

99.0

16.0

20.7

$619

Seasonic Seasonic Prime TX-1600 1600 W · ATX · Modular

99.0

17.7

22.9

$560

Compare these in the PSU table

Discussion

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Vendor copy

Amazon listing details

Marketplace feature text kept for reference. Structured specifications above are the source for scores and comparisons.

Ultra-High Efficiency 80 PLUS Platinum Certified

Fully Modular Cabling Design

Top-Quality 135 mm Fluid Dynamic Bearing Fan

Micro Tolerance Load Regulation (MTLR) [0.5 %]

PVC Embossed Cable