Thermaltake Toughpower GT 1000W ATX 3.1 Power Supply - Compact 1000W

Our review of the Thermaltake Toughpower GT 1000W finds it best suited for mainstream and high-end desktop builders who need a compact, reliable ATX 3.1 power supply. The biggest reason to consider it is its combination of ATX 3.1 compliance and a native PCIe 5.1 12V-2x6 connector, which together mean the unit can handle modern GPU power excursions without forcing awkward cable work or sacrificing efficiency. For those who value neat cable routing, the full modular flat cables with color matched connectors make installation noticeably easier.

Key Features

• ATX 3.1 compliance: Built to ATX 3.1 specifications so it can cope with multiple GPU power excursions while keeping stable output and good low-load efficiency.
• Native PCIe 5.1 12V-2x6: The included native 12V-2x6 connector delivers up to 600W to modern GPUs without adapters, simplifying high-power GPU builds.
• Compact length: At 140mm long, this 1000W unit fits more easily into mid-tower cases that are tight on space while still offering full modular connectivity.
• Full modular flat cables: Color matched flat cables improve flexibility and cable management for cleaner builds and better airflow.
• 80 Plus Gold efficiency: High efficiency reduces wasted heat and can lower operating costs compared with less efficient supplies.
• Quiet cooling: A hydraulic bearing 120mm fan with Smart Zero Fan mode balances cooling and low noise for quiet operation under typical loads.

Who It's For

The Toughpower GT 1000W is ideal for PC builders who need a high-capacity unit that still fits inside many mid-size cases and who plan to use modern graphics hardware that benefits from a native PCIe 12V-2x6 feed. It suits system builders who want clean cable runs and a quieter system thanks to the flat modular cables and tuned 120mm fan.

It is less appropriate for extremely small form factor SFF systems that require shorter or specialized PSUs, and buyers who need platinum-level efficiency or fully passive cooling should consider other models. Enthusiasts seeking modular cables with unusual custom lengths should also check compatibility first.

Pros & Cons

Pros

• Native PCIe 5.1 12V-2x6 connector simplifies modern GPU power delivery without adapters.
• Full modular flat cables with color matched connectors make routing and installation easier.
• Compact 140mm length provides a better fit in tighter mid-tower cases while retaining 1000W capacity.
• 80 Plus Gold efficiency and a quiet hydraulic bearing fan keep heat and noise under control.

Cons

• Not targeted at ultra-SFF builds that require shorter or proprietary power supplies.
• Some buyers may prefer higher efficiency tiers if power draw and long-term savings are the top priority.

Specifications

Model	Toughpower GT 1000W
Form factor	ATX 3.1
Connector	Native PCIe 5.1 12V-2x6 (up to 600W)
Modularity	Full modular with flat color matched cables
Efficiency	80 Plus Gold
Cooling	120mm hydraulic bearing fan with Smart Zero Fan mode
Length	140mm

Our Verdict

The Thermaltake Toughpower GT 1000W is a strong choice for builders who need a 1000W ATX 3.1 supply that fits in tighter cases and supports modern GPUs without adapters. With full modular flat cables, color matched connectors, and 80 Plus Gold efficiency, it delivers reliable performance and tidy builds at a sensible value for most high-end desktop users.

Frequently Asked Questions

Does this PSU work with current high-end GPUs?
Yes, the native PCIe 5.1 12V-2x6 connector supplies up to 600W to modern GPUs, avoiding the need for adapter cables in most builds.

Will it fit in a mid-tower case?
At 140mm long, the Toughpower GT 1000W is shorter than many 1000W units and is well suited to most mid-tower cases, though very compact SFF cases may still be too tight.

Is it quiet under load?
The unit uses a hydraulic bearing 120mm fan with Smart Zero Fan mode and is reported by customers to run quietly during typical use.