KitGuru tried the Corsair Neutron XTi 480GB
A quote from the article:
Just like the Neutron XT, the XTi uses the Phison PS3110 S10 controller but this time it is paired with Toshiba 15nm MLC NAND. The XT series used 19nm NAND.Corsair Neutron XTi 480GB Review @ KitGuru