CPUThe three elements to consider when selecting virtualization hardware include the CPU, memory, and network I/O capacity. They're all critical for workload consolidation.Issues with the CPU pertain to either clock speed or the number of cores held by the CPU. Please don't run out and buy the market's fastest CPU. Instead, buy one with more modest clock speed and a greater number of cores.You'll receive better consolidation from two CPUs with 2.4 GHz and 10 cores than you will from two CPUs with 3 GHz and 4 cores. Invest in faster CPUs only when your workload demands it. The best server for virtualization will include CPUs with large internal caches.