Essentials · Product Collection · 12th Generation Intel® Core™ i5 Processors · Code Name · Products formerly Alder Lake · Vertical Segment · Desktop · Processor Numberi · 5-12400FLithography · Intel 7Use Conditions · PC/Client/Tablet · CPU Specifications · Total Cores# of Performance-cores# of Efficient-cores · Total Threads · Max Turbo Frequency · 4.40 GHzPerformance-core Max Turbo Frequency · 4.40 GHzPerformance-core Base Frequency · 2.50 GHzCache · 18 MB Intel® Smart Cache · Total L2 Cache · 7.5 MB · Processor Base Power · Maximum Turbo Power · Supplemental Information · Embedded Options Available · NoMemory Specifications · Max Memory Size (dependent on memory type)128 GB · Memory Types · Up to DDR5 4800 MT/sUp to DDR4 3200 MT/sMax # of Memory Channels · Max Memory Bandwidth · 76.8 GB/sExpansion Options · Direct Media Interface (DMI) Revision · Max # of DMI Lanes · Scalability · 1S Only · PCI Express Revision · 5.0 and 4.0PCI Express Configurations Up to 1x16+4, 2x8+4Max # of PCI Express Lanes · Package Specifications · Max CPU Configuration · Thermal Solution Specification · PCG 2020CTJUNCTION100°CPackage Size · 45.0 mm x 37.5 mm