The Thermaltake Toughpower PF1 650W achieves top overall performance, despite its mediocre transient response at +12V, which is the most important rail of all. With better transient response at the aforementioned rail, it could be the king in the 650W category. Still, the PF1 650W manages to earn a place in our best PSU picks article. Its major opponent is the Seasonic Focus Plus Platinum, which manages to take the lead with a small difference in overall performance.
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