# PCBottleneckCalculator.io > PC Bottleneck Calculator is a free online tool that helps users analyze CPU and GPU combinations to identify bottlenecks in performance. It provides real-time benchmark-based insights, upgrade suggestions, and educational content to support smarter PC building. PC Bottleneck Calculator allows PC users, gamers, and system builders to balance their components effectively by showing if their CPU or GPU is holding back performance. It's fast, free, and beginner-friendly. ## Core Pages - [Homepage](https://pcbottleneckcalculator.io/): Main page with the bottleneck calculator tool. - [Contact Us](https://pcbottleneckcalculator.io/contact-us/): Get in touch for support, questions, or partnerships. - [Terms and Conditions](https://pcbottleneckcalculator.io/terms-and-conditions/): Usage terms for the website and its services. - [Disclaimer](https://pcbottleneckcalculator.io/disclaimer/): Legal notice about tool limitations and responsibilities. - [Privacy Policy](https://pcbottleneckcalculator.io/privacy-policy/): Details on how user data is collected and protected. - [Cookie Policy](https://pcbottleneckcalculator.io/cookie-policy/): Explanation of cookie use and controls. ## Optional - [Sitemap](https://pcbottleneckcalculator.io/sitemap.xml): Auto-generated list of all URLs on the website.