The Seasonic VERTEX GX-1000 wins in 5 out of 9 comparable specs, with 2 ties. Its biggest advantage is SATA Connectors (100% better).
SuperNOVA 850 G6 wins in 2 specs (PCIe Connectors: 50% better).
Recommendation
Choose VERTEX GX-1000 if you want the best overall performance — especially sata connectors.
Choose SuperNOVA 850 G6 if pcie connectors matters more to you.
