The Cray XT4 (codenamed "Hood" during development) is an updated version of the Cray XT3 supercomputer, which includes an updated version of the SeaStar interconnect router, processor sockets for Socket AM2 Opteron processors, and 240-pin unbuffered DDR2 memory.
The Cray XT4 (codenamed "Hood" during development) is an updated version of the Cray XT3 supercomputer. It includes an updated version of the SeaStar interconnect router called SeaStar2, processor sockets for Socket AM2 Opteron processors, and 240-pin unbuffered DDR2 memory.