Intel® Core™ i9 13900K (5.8GHz max clock speed), 24 Cores (8 Performance-cores, 16 Efficient-cores), 32 Thread (16 on Performance-cores, 16 on Efficient-cores) CPU, Socket LGA 1700, 36MB SmartCache, 125W processor base power, BX8071513900K. Retail box does not include fan, heatsink or thermal paste.