The Corsair RM1200x SHIFT wins in 8 out of 9 comparable specs. Its biggest advantage is PCIe Connectors (350% better).
500 BQ wins in 1 spec (MSRP: 85% better).
Recommendation
Choose RM1200x SHIFT if you want the best overall performance — especially pcie connectors.
Choose 500 BQ if msrp matters more to you.
