BottleneckPC is a free PC bottleneck calculator and build tool site. It is used to check whether a CPU and GPU are holding each other back, and it presents the question in terms of hardware pairing and upgrade recommendations.
The site’s bottleneck calculator analyzes a selected hardware pairing and gives actionable upgrade recommendations. A separate bottleneck checker lets a user select a CPU, GPU, and resolution to see whether the components are well matched or whether one is limiting the other. The page also explains that bottleneck behavior can change with resolution, noting examples at 1080p and 4K, and says the ideal setup keeps both CPU and GPU fully utilized. Beyond bottleneck checking, BottleneckPC includes a budget PC builder that takes a budget and use case and generates a complete, optimized PC build with the needed parts and links to buy them.
Additional tools are listed in the site navigation and page content, including an FPS Calculator, PSU Calculator, Monitor Match, RAM Advisor, Case Finder, Games Tools, and a Blog. The PSU Calculator is explicitly described as a way to find the right power supply. The page also mentions a fuller checker with auto-detect and an option to start from a full build.
BottleneckPC is presented as a free online service. The available text identifies it as a PC bottleneck calculator to check CPU and GPU compatibility, and it frames the site around matching hardware, building a budget gaming PC, and getting upgrade recommendations. No licensing information is stated in the provided text.
In the Other productivity space, BottleneckPC takes a focused approach. It focuses on identifying and resolving hardware bottlenecks in custom PC builds for optimal gaming and performance. BottleneckPC is a consumer product aimed at PC gamers and custom PC builders. BottleneckPC is free to use. The product ships for the web, embeddable surfaces, and API.
BottleneckPC first shipped in 2026. Among its 7 catalogued features are bottleneck calculator, PC build generator, and FPS calculator. It exposes integrations via a public API.
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PC Bottleneck Checker verified by the PulseGate indexer
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