What’s the difference between Intel i5 models, like the i5-10400 and i5-10400F?

When it comes to Intel CPUs, the letters at the end of the model number matter a lot! The 'K' means it's unlocked for overclocking, while the 'F' indicates that the CPU lacks integrated graphics. So, the i5-10400F won't let you use onboard graphics, which can be a hassle if you're troubleshooting or don’t have a dedicated GPU. If you're looking for something budget-friendly, the 'F' version is a solid choice, but if you're not planning to overclock, the standard i5-10400 is likely more useful. It's all about what you need!