Intel Core i5-9400 Processor

• Total Cores 6
• Total Threads 6
• Max Turbo Frequency 4.10 GHz
• Intel® Turbo Boost Technology 2.0 Frequency‡ 4.10 GHz
• Processor Base Frequency 2.90 GHz
• Cache 9 MB Intel® Smart Cache
• Bus Speed 8 GT/s
• TDP 65 W

Source : http://www.intel.com/content/www/us/en/products/sku/134898/intel-core-i59400-processor-9m-cache-up-to-4-10-ghz/specifications.html?wapkw=i5%209400