windows 10 - Why is my Core i5 9400F not throttling back to stock 2.9GHz? - Super User
Intel Core i5 9th Gen - Core i5-9400F Coffee Lake 6-Core 2.9 GHz (4.1 GHz Turbo) LGA 1151 (300 Series) 65W BX80684I59400F Desktop Processor Without Graphics - Newegg.com
Is the i5 9400f worth upgrading to from an i5 6500k? : r/intel
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Intel Core i5-9400F Specs | TechPowerUp CPU Database