CPU Comparison

Intel Core i5-4258U vs Intel Core i5-4288U

A side-by-side comparison of specs, performance and value. The Intel Core i5-4258U is a high-performance dual-core mobile processor launched in mid-2013 as part of the 4th Generation Core (Haswell) family. Unlike standard U-series chips that operate at 15 watts, this model features a 28-watt TDP, allowing for significantly higher clock speeds and a more powerful integrated graphics solution. It runs at a base clock of 2.4 GHz and can boost up to 2.9 GHz, providing robust single-threaded performance for a mobile chip of its era. The processor supports Hyper-Threading, offering four threads across its two cores. Crucially, it integrates Intel HD Graphics 5100 (Iris Graphics), which features 40 execution units and a higher max dynamic frequency compared to lower-tier models. This made it an ideal choice for premium thin-and-light laptops that required extra graphical horsepower without the need for a discrete GPU, bridging the gap between basic ultrabooks and professional workstations.