Corsair's AX1500i will be world's second PSU to get a 115V 80lus Titanium rating. Super Flower already has a Titanium model, this rating means that when operating on 115V, the power supply must have a minimum efficiency of 90% at 10% load, 92% at 20% load, 94% at 50% load and 90% and full load. Unfortunately, the PSU has no 80Plus Titanium rating at 230V.
The unit is expected to ship later this year for around $450.
It was tested to offer 91.23% efficiency at 10% load, 92.63% efficiency at 20% load, 94.04% efficiency at 50% load, and 91.34% efficiency at 100% load, staying above 90% at all test scenarios.