It covers standalone servers with one to four processor sockets.
Debuting in 4- and 8-core variants later this year, Nehalem packs a ton of hardware into a single processor socket.
Pricing of vSphere 4 is tied to the amount of physical memory and number of processor sockets and cores present in a server.
The larger of the two chips fits in the main processor socket, the smaller in the coprocessor socket.
Everything about this design is focused on pushing large numbers of parallel instruction streams and data streams through the processor socket at once.
These systems range from 4 to 72 processor sockets (8 to 144 cores).
Socket 478 was intended to be the replacement for Socket 423, a Willamette-based processor socket which was on the market for only a short time.
As the 6502 is externally-clocked, upgrading the speed involved more than dropping a faster chip into the processor socket; many other components would also need to be modified.
For motherboards with only one processor installed, it is recommended the primary processor socket be populated first.
In maximum machine's configuration four second-level crossbars interconnect with each other, supporting in total 64 processor sockets.