the i3-8145U retains the same dual-core design as opposed to quad-core of the i5 and i7. The i3-8145U has a higher clock speed of 3.9 GHz versus 3.4 GHz, which is the only important difference between it and the i3-8130U. specs of the Intel Core i3-8145U: Processor Name Intel Core i3-8145U CPU Family 8th Generation Intel Core "Whiskey Lake" Number of Cores Dual-core / 2 computing threads per core CPU Clock Speed 2.1 - 3.9 GHz Cache Size 4MB Memory Support DDR3 (2133 MHz max. speed) DDR4 (2400 MHz max. speed) Integrated Graphics Intel UHD 620 Power Consumption 15W Production Technology 14-nanometer Typical Use Mainstream laptops & 2-in-1 PCs Notable Technologies Intel HyperThreading (enables two computing threads per physical processor core) Intel QuickSync Video (speeds up conversion of video files) Intel TurboBoost (dynamically boosts performance of cores, depending on power and thermal headroom) VT-d virtualization VT-x virtualization