CPU - Intel

The CPU is the central processing unit, literally the central component in a computer. It's responsible for processing instructions and controlling the other components. Many include basic on-board graphics processors too so you can power a display without needing a separate graphics card. Intel and AMD rule the desktop processor market, and each has a wide range of models suited to different tasks and budgets. Low-end, dual-core chips can be had for £25 or even less, but are only well matched to basic tasks, while the high-end is home to multi-core, high frequency monsters that can tear through the world's most intensive software. Before buying, ensure you've got a compatible motherboard and a cooler that can take the heat.

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Intel Xeon E3 1200 v6 Socket 1151 Kabylake Processors

Intel Xeon E3 1200 CPUs are designed for entry-level servers and workstations and feature four cores and support for ECC memory which is more reliable than unbuffered memory. These latest v6 models are based on the Kaby Lake architecture, which offers higher performance thanks to improved IPC (instructions per clock) and higher frequency than previous generation Xeon E3 1200 processors.