Thermaltake Toughpower PF3 750W PSU Review

Epilogue

The Thermaltake Toughpower PF3 750W performs well, placing second at 115V and fourth at 230V. The problem is the much higher price tag than the GF A3 with similar capacity, which the same OEM makes. The same ten-year warranty covers both products, and the performance difference is not high enough to justify a 60-65 dollar price increase.

Similar to the PF3 with 850W max power that I recently evaluated, the problems I spotted remain the same. Besides the high price, I measured low PF values at 115V and 230V, high inrush currents, and the pair of EPS connectors installed on the same cable. It is strange to see a high-end unit having a pigtail EPS cable and, to make things even worse, with 18AWG gauges up to the first connector. EPS connectors can deliver more power than PCIe since they have an extra power pin, so it is unsafe to have both installed on the same cable and get power from a single PSU socket. Lastly, I am not excited about the fan’s quality, which doesn’t match the overall PSU’s build quality. HKC should use a higher-grade fan, and I am unsure if the current fan can outlive the long warranty.

The Thermaltake Toughpower PF3 750W is a high-performance and highly efficient power supply, offering a good transient response, and thanks to its 600W 12+4 pin PCIe connector, it is compatible with every GPU out there, theoretically, because an RTX 4090 will push it to the limits and beyond! The asking price is high, so if you want to save money and are okay with 5-6% lower overall performance, the GF A3 750W looks way more appealing.

To check all alternative PSU offerings, read my Best ATX v3.0 PSUs article before investing in a new power supply. You help me a lot by using my affiliate links, which don’t increase the product’s price. I get a commission from Amazon every time you do it, which can make a difference for me, especially now that I am on my own, working exclusively for my media and not for someone else.