The Seasonic Focus GX-650 wins in 5 out of 9 comparable specs, with 3 ties. Its biggest advantage is Warranty (233% better).
500 BQ wins in 1 spec (MSRP: 56% better).
Recommendation
Choose Focus GX-650 if you want the best overall performance — especially warranty.
Choose 500 BQ if msrp matters more to you.
