Thermaltake
Thermaltake Toughpower GT 850W Snow ATX 3.1 Power Supply; 80 Plus Gold Efficiency; Smart Zero Fan; Native 600W PCIe 5.1 Connector; PS-TPT-0850FNFAGU-W; 5 Year Warranty
Bottom line: The Thermaltake Toughpower GT 850W Snow ATX 3.1 Power Supply; 80 Plus: Native 600W 12V-2x6 (12+4 pin) cable powers PCIe 5.1 GPUs with no adapter; main trade-off: 850W may run short for a top-tier GPU paired with a high-draw CPU.
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Pros & Cons
Pros
- ✓ Native 600W 12V-2x6 (12+4 pin) cable powers PCIe 5.1 GPUs with no adapter
- ✓ ATX 3.1 compliant for current-gen platforms and GPU transient loads
- ✓ 80 Plus Gold rating with up to 90% efficiency
- ✓ Fully modular, low-profile white cables for clean all-white builds
- ✓ Smart Zero Fan stops the 120mm hydraulic bearing fan at low loads
Cons
- ✗ 850W may run short for a top-tier GPU paired with a high-draw CPU
- ✗ Only one native 12V-2x6 connector listed, a poor fit for multi-GPU rigs
- ✗ Gold tier, so efficiency trails Platinum and Titanium units
- ✗ White housing and cables show dust and grime faster than black ones
Manufacturer description
The Thermaltake Toughpower GT 850W Snow is an ATX 3.1 power supply for white-themed builds that need headroom for a modern graphics card. Its native 12V-2x6 (12+4 pin) PCIe 5.1 connector is rated for 600W, so a next-gen GPU runs from one dedicated cable instead of an adapter. With 80 Plus Gold certification, the unit reaches up to 90% efficiency, so less power turns into heat inside your case. It is fully modular with low-profile white cables. You plug in only the leads your build needs, which keeps airflow paths clear and the white look consistent. A 120mm hydraulic bearing fan handles…
SpecPicks Verdict
SpecPicks scored Thermaltake Toughpower GT 850W Snow ATX 3.1 Power Supply; 80 Plus… using a rating × review-volume × price-fit model applied to published specs and reviews across the power supplies category. Thermaltake's power supplies lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for power supplies of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Frequently Asked Questions
Does the Toughpower GT 850W Snow work with RTX 50-series and other 12V-2x6 graphics cards?
It includes a native 12V-2x6 (12+4 pin) PCIe 5.1 connector rated for 600W and is ATX 3.1 compliant, so it can power GPUs that use that connector without an adapter. Check your card's recommended PSU wattage against the 850W rating.
Is this power supply fully modular?
Yes. It is fully modular with low-profile white cables, so you connect only the cables your build needs, which helps cable management and airflow.
How loud is the fan?
It uses a 120mm hydraulic bearing fan with Smart Zero Fan control, which keeps the fan stopped at low loads for silent running. The fan spins up as load increases.
What warranty does the Thermaltake Toughpower GT 850W Snow have?
Thermaltake backs this unit (P/N PS-TPT-0850FNFAGU-W) with a 5-year warranty. See Thermaltake's warranty policy for registration and claim details.
What protections are built in?
The PSU includes over-current (OCP), over-voltage (OVP), under-voltage (UVP), over-power (OPP), over-temperature (OTP) and short-circuit (SCP) protection.
Key Features
- 80 PLUS Gold Efficiency & ATX 3.1 Compliant: Up to 90% efficiency with ATX 3.1 compliance for reliable power and reduced energy use.
- Fully Modular Design: Low-profile white cables simplify cable management and improve airflow.
- Native PCIe 5.1 Connector: Equipped with 12V-2x6 (12+4 pin) for next-gen GPU compatibility.
- Smart Zero Fan with Quiet Operation: 120mm hydraulic bearing fan with Smart Zero Fan function ensures silent performance at low loads.
- Comprehensive Safety Protections: Includes OCP, OVP, UVP, OPP, OTP, and SCP for system safety.
Full Specifications
| Brand | Thermaltake |
|---|---|
| Wattage | 850 watts |
| Fan Size | 12 centimeters |
| Model Name | Toughpower GT Snow 850 |
| Unit Count | 1 Count |
| Form Factor | ATX |
| Model Number | TPD-850AH2FXG-3 |
| Connector Type | ATX, Molex, PCI Express, SATA |
| Cooling Method | Air |
| Number of Fans | 1 |
| Output Wattage | 850 watts |
| Item Dimensions | 5.9 x 5.5 x 3.4 inches |
| Mfr Part Number | PS-TPT-0850FNFAGU-W |
| Compatible Devices | PC |
| Connector Quantity | 5 |
| Power Supply Design | Full Modular |
| Fully Modular Design | Low-profile white cables simplify cable management and improve airflow. |
| Warranty Description | 5 Year Manufacturer |
| Maximum Input Voltage | 240 volts_of_alternating_current |
| Minimum Input Voltage | 100 volts_of_alternating_current |
Ready to buy?
Thermaltake Toughpower GT 850W Snow ATX 3.1 Power Supply; 80 Plus Gold Efficiency; Smart Zero Fan; Native 600W PCIe 5.1 Connector; PS-TPT-0850FNFAGU-W; 5 Year Warranty is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
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