Can someone explain what are E cores and P cores?
Can someone explain what are E cores and P cores?
You're considering a 14900k processor with a mix of performance and efficiency cores. The distinction lies in how each core type handles tasks: performance cores are built for heavy workloads, while efficiency cores focus on lighter, more consistent tasks. Having 24 cores means the chip can theoretically split work across many threads, but real-world utilization depends on your specific workload. If you run demanding applications, it may benefit from using all cores; for lighter tasks, efficiency cores can handle more smoothly without overloading them. The CPU will try to balance between them based on what it detects during operation.
These cores are designed to handle background work on Windows, allowing the performance cores to focus on gaming and other demanding tasks.
Core types are chosen for devices that prioritize battery life over raw performance. E cores are suited for low-power applications like tablets and ultra-portable laptops, while P cores are built for speed. Combining both can reduce power consumption, letting games run on P cores while the operating system handles background tasks on E cores. This setup helps manage workloads efficiently. For instance, a pfSense box with 4 efficiency cores lets it idle at just 11 watts compared to 40 watts for performance cores. This is partly due to Intel's challenges in making performance cores more efficient, prompting them to balance power usage. If they kept only 24 performance cores, cooling would become a major issue. I own a 12400F server and wish I had a higher chip with more E cores, as it idles similarly to the older 8600K model.
P-Core remains consistent with previous designs, typically featuring multiple threads per core (often two per physical core). E-Core is a newer design introduced in the 12th generation and beyond, offering reduced clock speeds and power consumption for improved efficiency. It lacks hyper-threading, meaning only one thread runs per core.