Open (Ctrl + Shift + Esc) on Windows or Activity Monitor on Mac. Look at the CPU tab .

Your CPU doesn't make the internet "faster," but a weak CPU can act as a , preventing you from reaching the speeds you’re actually paying for. 2. When the CPU Becomes a Bottleneck

The short answer is While your CPU doesn't dictate the raw speed of data traveling through your fiber-optic lines, it plays a critical role in how that data is processed once it hits your system.

To understand the CPU's role, we have to distinguish between and data throughput.