Both are based on the Intel Xeon processor. The V60x has dual 2.8Ghz or 3Ghz CPUs, up to 6G RAM, three Ultra320 SCSI disks, and two PCI-X slots in a 1U rackmount enclosure. The V65x has the same specs except that it holds up to 12G RAM, six Ultra320 SCSI disks, and six PCI-X slots in a 2U rackmount enclosure.
UPDATE: As of May 8th, Sun has taken down these links. I guess we weren’t supposed to know about the systems yet.