Product Description About this item 6 Cores/ 6 Threads 2. 90 GHz up to 4. 10 GHz Max Turbo Frequency/ 9 MB cache Compatible only with Motherboards based on Intel 300 Series chipsets Processor Graphics - Intel UHD Graphics 630 Intel Optane Memory supported.Note: 2.9 GHz is a base frequency whereas 4.1GHz is a Max turbo frequency Product information Techn... https://www.electronics70off.co.uk/products/Intel-Core-i5%252d9400-Desktop-Processor-6-Cores-2.-90-GHz-up-to-4.-10-GHz-Turbo-LGA1151-300-Series-65W-Processors-BX80684I59400.html