Thermaltake Toughpower GF3 1650W For Your Extreme 12VHPWR Needs

Source: TechPowerUp Thermaltake Toughpower GF3 1650W For Your Extreme 12VHPWR Needs

Finally You Can Power Both Your NVIDIA RTX 4090s

Power demand is on the rise again, as are kilowatt class PSUs such as the Thermaltake Toughpower GF3 1650 W.   It’s single ATX 3.0 12 V rail is capable of delivering the entire 1650W at 137.5A to your components and it comes with a pair of 12+4 pin PCIe 12VHPWR connectors.  At an MSRP of $330 it is also one of the more affordable ATX 3.0 and PCIe 5.0 ready PSUs, even if that is still a hefty price.

TechPowerUp’s testing showed this unit has amazing power delivery, it handled loads of up to 2000W while still remaining at 43 °C, and it didn’t shut down with a 3200 W transient load.  While that is good, it also suggests the overpower protection might be set a bit high for a long lifespan, though the 10 year warranty should reassure you somewhat.  

The other downside was that in order to maintain such comfortable temperatures, the fan produced over 50 dBA at full load.  On the other hand, if you need that much power, then the Thermaltake Toughpower GF3 1650W PSU is certainly up to the task.

The Thermaltake Toughpower GF3 1650 W is the only PSU on the market that offers two 12VHPWR connectors, each capable of 600 W. This unit can support two NVIDIA RTX 4090s with their power limits set to max, along with a powerful CPU and other power-hungry components.

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About The Author

Jeremy Hellstrom

Call it,, or PC Perspective, Jeremy has been hanging out and then working with the gang here for years. Apart from the front page you might find him on the BOINC Forums or possibly the Fraggin' Frogs if he has the time.


  1. Mirko Jankovic

    I’ve bought one. Attached 2x 4090 on it. System randomly rebooting. Tested on another computer also with 2×4090, same thing., It works stable on old corsair 1500i. Sent unit to RMA, waiting still for over 2 months now. Bought 2nd PSU in the mean time same model, thinking I had bad unit. Same thing. Computer resetting. Never again Thermaltake.. looking for refund on both now!

    • Jeremy Hellstrom

      Ouch, that must be frustrating! Sounds like it might be triggering overvoltage maybe?


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