Intel Pentium Dual-Core Processor E5800 - 3.2 GHz (Wolfdale, 800MHz front-side bus, 2MB Level-2 cache, Socket LGA775, 65W TDP) This Intel Pentium Dual-Core processor is a great choice for those looking for a reliable and efficient CPU. With its high clock speed of 3.2 GHz and fast front-side bus (FSB), it can handle demanding tasks with ease. The processor also has a large Level-2 cache, which helps to improve performance by reducing the number of memory accesses required. One downside of this CPU is that it only has two cores, so it may not be suitable for multitasking or heavy multi-threaded workloads. However, for most everyday tasks such as browsing the web, office applications, and gaming, it should suffice. Overall, if you're looking for a reliable and efficient CPU that can handle demanding tasks with ease, this Intel Pentium Dual-Core processor is definitely worth considering. Intel Xeon E5-2420 1.9GHz Socket 1356 3600Mhz CPU SR0LN (Renewed) This refurbished Intel Xeon E5-2420 processor is a great choice for those looking for a powerful and efficient CPU. With its high clock speed of 1.9 GHz, it can handle demanding tasks with ease. The processor also has a large Level-3 cache, which helps to improve performance by reducing the number of memory accesses required. One downside of this CPU is that it only has four cores, so it may not be suitable for multitasking or heavy multi-threaded workloads. However, for most enterprise applications and high-performance computing tasks, it should suffice.