Indeed: the first dual core server chips only launched in 2005 afaik with 90nm Denmark/Italy/Egypt Opterons and Paxville Xeons but on the Intel side it wasn't until 2007 when they were in full swing.
first dual core server chips show up generally available in 2001 with IBM POWER4, then HP PA-RISC ones in 2004, and then Opterons which was followed by "emergency" design of essentially two "sockets" on one die of of NetBurst dual core systems.
first dual core server chips show up generally available in 2001 with IBM POWER4, then HP PA-RISC ones in 2004, and then Opterons which was followed by "emergency" design of essentially two "sockets" on one die of of NetBurst dual core systems.