Are Bottleneck Calculators Helpful for PC Builds?

I’ve been exploring tools like PC Bottleneck Calculator Tool to better understand how different components work together in a PC build. It gives a quick idea of whether the CPU or GPU might be limiting performance, and PC Bottleneck Calculator Tool seems really helpful for users who want fast insights without deep technical research.

However, I’m still not completely sure how accurate PC Bottleneck Calculator Tool is in real-world scenarios. Since performance depends on many factors like games, resolution, and system configuration, it may only provide a general estimate. Still, PC Bottleneck Calculator Tool can be useful as a starting point before making upgrade decisions.

What do you think about PC Bottleneck Calculator Tool? Do you rely on tools like this, or do you prefer detailed benchmarks and real-world performance testing instead?