The Seasonic VERTEX GX-1200 wins in 5 out of 9 comparable specs, with 2 ties. Its biggest advantage is 12VHPWR Connector (100% better).
Ion+ 2 Platinum 760W wins in 2 specs (MSRP: 43% better).
Recommendation
Choose VERTEX GX-1200 if you want the best overall performance — especially 12vhpwr connector.
Choose Ion+ 2 Platinum 760W if msrp matters more to you.
