PC components explained: learn what each part does, their functions, and how CPU, GPU, storage, and cooling impact performance and longevity.

Based on our expert analysis and tests, here are the best PC components and accessories in 2025, from GPUs and CPUs to SSDs and monitors.

The main processor (CPU, “Central Processing Unit”), the main memory (RAM, “Random-Access Memory”), and the dedicated graphics card with its graphics processor (GPU, “Graphics Processing Unit”) are ...

Switching to a new gaming display leaves you with your old monitor, and you need to decide whether to retain or sell it for ...

We may receive a commission on purchases made from links. Building your first computer is a memory worth cherishing for years, and the amount of research that goes into picking the right parts is what ...