Intel Core i3-1315U vs Intel Core i5-8265U

The Intel Core i5-8265U, based on the Whiskey Lake U architecture, was introduced in the third quarter of 2018.

It was aimed at users of thin and light notebooks seeking solid performance for everyday tasks. The Intel Core i3-1315U, on the other hand, from the first quarter of 2023 and based on the newer Raptor Lake U architecture, targets modern, energy-efficient laptops designed to offer improved performance for general productivity and light multimedia applications.

The Intel Core i5-8265U is manufactured using a 14-nm process and features 4 cores and 8 threads, offering a classic multithreading structure. The Intel Core i3-1315U is produced using the more advanced 10-nm process (Intel 7) and utilizes a hybrid architecture with 2 performance cores and 4 efficiency cores, resulting in a total of 6 cores and 8 threads.

This modern architecture enables optimized task distribution. In terms of single-core performance, the Intel Core i3-1315U shows a significant advantage over the Intel Core i5-8265U. The Intel Core i3-1315U also clearly outperforms its older competitor in multi-core performance. This is due to the newer processor's more advanced architecture and higher efficiency per clock cycle, which delivers noticeably better computing power for more demanding applications.

For gaming scenarios, the Intel Core i3-1315U offers significantly higher performance thanks to its integrated Intel Iris Xe Graphics 64 compared to the Intel Core i5-8265U with its Intel UHD Graphics 620. The Iris Xe graphics are considerably more powerful for casual gaming and lighter graphical tasks.

Additionally, the newer processor benefits from a higher maximum memory bandwidth of 83 GB/s compared to 38 GB/s, further supporting the performance of the integrated graphics unit. Both processors are designed as U-series for high energy efficiency in mobile devices, leading to low power consumption and a low Thermal Design Power (TDP).

However, the Intel Core i3-1315U benefits from its more modern 10-nm manufacturing process, which generally enables better performance per watt. This leads to potentially longer battery life and cooler operating temperatures with similar or better performance compared to the older 14-nm chip. The Intel Core i5-8265U is mainly found today in older or used devices, meaning its price-performance ratio should be evaluated in the context of these devices.

The Intel Core i3-1315U, on the other hand, is available in current entry-level to mid-range notebooks and offers a superior price-performance ratio thanks to its significantly higher performance and modern features. For new purchases, it thus provides more computing power for the money invested.

The Intel Core i5-8265U is an older but solid processor for basic productivity and everyday tasks. It is found in more affordable, used systems and is sufficient for web browsing, word processing, and emails. The Intel Core i3-1315U is a significantly more modern and powerful option. Its hybrid architecture and improved integrated graphics offer superior performance for more demanding applications, multitasking, and even light gaming.

For users seeking a current system with better future-proofing and higher performance for everyday tasks as well as occasional multimedia applications, the Intel Core i3-1315U is the more recommended choice.