system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why do AMD CPUs have way more GHz for the same price? And why is Intel still considered better?

Intel i5 4x3,4Ghz costs more than AMD 6x3,9Ghz but is still considered better by friends rankings and user experiences.
gpt
GHz is only a measure of CPU clock speed. It's a good way to compare very similar CPUs but for CPUs of very different design, architecture, and features, differences in clock speed don't really mean much. Simply put, different CPUs do different amount of work per cycle. For example, let's say it takes one CPU 12 cycles to multiply two large numbers. A different CPU might need only 8 cycles. CPUs have different features, can do multiple tasks simultaneously, have different sets of onboard memory (called cache), are sometimes able to increase their clock speed temporarily above the normal clock speed (overclock). One number is simply not enough to compare different CPUs - you need to look at overall benchmark scores.