Welcome to Bottleneck Checker — your all-in-one platform for analyzing and optimizing your PC's performance balance. This tool helps you identify performance mismatches, also known as “bottlenecks,” between your CPU and GPU. An imbalanced setup can limit your system’s potential, resulting in lag, frame drops, or inefficient hardware usage. By selecting your CPU and GPU below, you’ll instantly see whether your components are working in harmony or if one is holding back the other.

In addition to this calculator, our website features a growing library of helpful resources. Explore the article page to learn the fundamentals of bottlenecking. Visit the tips page for expert advice on testing and maintaining peak system performance. Need hardware upgrade suggestions? Try the recommendation tool to find CPU/GPU combos with minimal bottleneck. For more about who we are, check out our About page. If you have questions or feedback, drop us a message via the Contact form. And don’t forget to read our Privacy Policy to learn how we handle your data.