The Seasonic Prime TX-1000 wins in 5 out of 9 comparable specs, with 1 tie. Its biggest advantage is PCIe Connectors (300% better).
Toughpower GF3 850W wins in 3 specs (12VHPWR Connector: 100% better).
Recommendation
Choose Prime TX-1000 if you want the best overall performance — especially pcie connectors.
Choose Toughpower GF3 850W if 12vhpwr connector matters more to you.
