Nehalem is a microarchitecture developed by Intel that was introduced in 2008. It marked a significant advancement in processor design, featuring improvements in performance and energy efficiency. Nehalem processors utilize a new integrated memory controller and support for Hyper-Threading, allowing for better multitasking capabilities. The Nehalem architecture is used in various Intel processors, including the Core i7 series. It supports DDR3 memory and introduced features like Turbo Boost, which dynamically increases the processor's speed when needed. This architecture laid the groundwork for subsequent generations of Intel processors, enhancing computing power for both personal and professional use.