The Intel Core i5-9400 2.90GHz processor is a potent six-core CPU from the 9th generation of Core i5 processors by Intel. With a 1.5mb L2 cache and 9mb L3 cache, this processor offers ample cache memory to help with multitasking and efficient processing. With a clock speed of 2.9 GHz and a bus speed of 100 MHz, this processor is suitable for a range of computing tasks, making it a solid choice for computer enthusiasts and professionals alike. Tested working.