The Intel Core i5-9600K was a desktop processor with 6 cores, launched in October 2018. It is part of the Core i5 lineup, using the Coffee Lake Refresh architecture with Socket LGA1151. The Core i5-9600K operates at a base frequency of 3.7 GHz and can boost up to 4.6 GHz, depending on the workload. Intel manufactured the Core i5-9600K on a 14 nm++ production process, offering improved efficiency and performance over previous generations. The processor features 9 MB of L3 cache, enhancing data access speeds for demanding applications.

With a TDP of 95 W, the Core i5-9600K provides a balance between performance and power consumption, though adequate cooling is still recommended for optimal operation. The multiplier is unlocked, allowing for overclocking to further enhance performance.

Intel's processor supports DDR4 memory with a dual-channel interface, running at speeds up to 2666 MHz. However, ECC memory is not supported, as this is primarily a consumer-grade CPU. For communication with other system components, the Core i5-9600K uses a PCI-Express 3.0 connection.

This processor does not include integrated graphics, so a dedicated graphics card is required for display output. Hardware virtualization is supported, improving performance in virtualized environments. The Core i5-9600K is a strong choice for gaming and productivity workloads, offering a solid upgrade over its predecessor, the Core i5-8600K.