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Thermaltake · 850 W · ATX

Thermaltake Toughpower GT 850W ATX 3.1

ATX 3.1 · 80 PLUS Gold · Modular

Capability
63
Cap / price
79
Wattage value
85
Amazon
$80
$80
Available on Amazon Updated Aug 30, 2026 Prime FBA
Capability63.0
Capability / price78.7
Wattage value85.0
$80 on Amazon PSU table Compare this PSU

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Written analysis

Thermaltake Toughpower GT 850W ATX 3.1 at a glance

The Thermaltake Toughpower GT 850W ATX 3.1 is a 850 W ATX power supply built to the ATX 3.1 generation. Efficiency is listed as 80 PLUS Gold. Cables are modular. It supports fan-stop at low load.

The calculated capability score is 63.0, averaging the available wattage, recorded efficiency percentage, and warranty inputs against fixed references. Listed warranty is 5 years. +12V output is 71 A.

Best fit: Performance desktops whose calculated component load fits comfortably within a 750–999 W supply.

Platform and cooling

Dimensions are listed as 150mm(W)x86mm(H)x140mm(D). Cooling fan size is 120 mm. The unit uses 1 +12V rail at up to 71.00 A per rail. Certifications include 80 PLUS®Gold.

Current value

At $80, price per kilowatt is $94.11. Capability / price is 78.7 and wattage value is 85.0. 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
Thermaltake
PSU
Thermaltake Toughpower GT 850W ATX 3.1
Model
PS-TPT-0850FNFAGU-3
Launch price
Amazon price
$80
Amazon availability
Available
Price updated
Aug 30, 2026

Power & efficiency

Wattage
850 W
Efficiency
80 PLUS Gold
Recorded efficiency
90%
Warranty
5 years

Value

Amazon price
$80
Price / kW
$94.11
Capability
63.0
Capability / price
78.7
Wattage value
85.0

Platform & size

ATX generation
3.1
Form factor
ATX
Dimensions
150mm(W)x86mm(H)x140mm(D)
Modular
Yes
Fanless
No

Electrical

Input voltage
100-240
+12V output
71 A
+5V output
20 A
+3.3V output
20 A
+12V rails
1
Max amps / rail
71.00 A

Cooling & build

Fan size
120 mm
Fan stop
Yes
Certifications
80 PLUS®Gold

Additional information

Also listed as
Toughpower GT 850W ATX 3.1
Color
Black

Amazon

Price history

Nearby capability

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Amazon listing details

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

ATX 3.1 and PCIe 5.1 Support: Fully compatible with Intel ATX 3.1 specifications, with native PCIe 12V-2x6 (12+4 pin) connectors for modern GPUs.

80 PLUS Gold Efficiency: Provides up to 90% efficiency, reducing energy consumption and heat output during operation.

Smart Zero Fan Technology: Automatically adjusts fan speed based on load, minimizing noise during low-load operations.

Fully Modular Design: Includes low-profile flat black cables, making cable management easier and improving airflow inside your case.

High Amperage Single +12V Rail: Provides reliable and stable power delivery, optimized for high-end gaming and workstation builds.