The Acer Aspire 5 2023 is available with the following CPUs:

• Intel Core i3-1305U (5 cores/6 threads, up to 4.50GHz, 10M cache)
• Intel Core i3-1315U (6 cores/8 threads, up to 4.50GHz, 10MB cache)
• Intel Core i5-1335U (10 cores/12 threads, up to 4.60GHz, 12MB cache)
• Intel Core i7-1355U (10 cores/12 threads, up to 5.00GHz, 12MB cache)
• Intel Core i5-13420H (8 cores/12 threads, up to 4.60GHz, 12MB cache)
• Intel Core i7-13620H (10 cores/16 threads, up to 4.90GHz, 24MB cache)
• Intel Core i9-13900H (14 cores/20 threads, up to 5.40GHz, 24MB cache)

The available processors are in two categories: the low-power U-series CPUs typically found in ultraportables and the more powerful and power-hungry H-series CPUs typically found in gaming laptops and workstations. A U-series CPU is likely more than adequate if you only perform general productivity tasks like web browsing, text processing, spreadsheets, and video playback. More CPU cores will give you better multi-thread performance, so heavy multitaskers should opt for a Core i5 or i7. As for the H-series CPUs, these are faster processors that can handle more demanding workloads, like programming and scientific studies. The downside is that they consume more power, so expect the battery life to be noticeably shorter. All the available CPUs have a hybrid architecture comprising performance and efficiency cores; see here for more information.