Ars looks at the phenomenon of server physicalization and explains why sometimes it's cheaper to slap a few single-core CPUs on into a system and integrate them at the board and system level. Even so, you're almost always better off going virtual and multicore."
"Physicalization" is an awkward name for an approach to server consolidation that seeks to offer a hardware-based alternative to virtualization by cramming multiple, low-power processors into a small amount of rack space. These processors are invariably mobile processors, designed for power-sensitive mobile products, and server vendors are building very small, modular server nodes around them and packing them as densely as possible into rack units.
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