Intel’s family of microprocessor brands started with the elemental-sounding Pentium. After years of success they needed a name fore a new higher-end chip that would not not detract from the existing lines living alongside it.
With Xeon, we took another cue from the periodic table - this time from the noble gases such as argon, neon, and krypton. Having used a similar strategy with Pentium, Xeon was able to signal something newer and more powerful while staying in the same metaphorical space and not denigrating its predecessors. Today, Xeon golds more than a 40% share in the server marketplace.