Intel Core i5-9400F

9th Generation Intel® Core™ i5 Processors Code Name Products formerly Coffee Lake Vertical Segment Desktop Processor Number i5-9400F Lithography 14 nm Performance # of Cores 6 # of Threads 6 Processor Base Frequency 2.90 GHz Max Turbo Frequency 4.10 GHz Cache 9 MB SmartCache Bus Speed 8 GT/s DMI3 TDP 65 W Memory Specifications Max Memory Size (dependent on memory type) 128 GB Memory Types DDR4-2666 Max # of Memory Channels 2 Max Memory Bandwidth 41.6 GB/s ECC Memory Supported ‡ No Expansion Options Scalability 1S Only PCI Express Revision 3.0 PCI Express Configurations ‡ Up to 1x16, 2x8, 1x8+2x4 Max # of PCI Express Lanes 16