Check your processor in Windows

Open the Start menu and type "System Information" into the search box, then click the result. A window will open showing your computer's details. Look for the line that says "Processor" — this will show you the exact model and speed of your CPU. The name will usually include the brand (Intel or AMD) and a series number, like "Intel Core i7-12700K" or "AMD Ryzen 5 5600X".

If you prefer a faster route, right-click on "This PC" or "My Computer" on your desktop, select Properties, and scroll down. You will see the processor listed under "Device specifications" as "Processor".

Check your processor on a Mac

Click the Apple menu in the top-left corner and select "About This Mac". A window will appear showing your system information. The processor name appears at the top under "Chip" (on newer Macs with Apple silicon) or "Processor" (on older Intel-based Macs). You will see something like "Apple M3 Max" or "Intel Core i9".

The same window also shows how many cores your processor has and its speed in GHz, which tells you how fast it runs.

Check your processor on Linux

Open a terminal window. Type the command lscpu and press Enter. The output will show your processor model name, the number of cores, and the speed. You can also type cat /proc/cpuinfo for more detailed information, though the output is longer and includes details most people do not need.

If you use a graphical desktop, you can also open your system settings and look for "System Information" or "Details" — the exact location depends on which Linux distribution you use.

Key Takeaways

  • On Windows, open System Information from the Start menu to find your processor listed under "Processor".
  • On a Mac, click the Apple menu and select "About This Mac" to see your processor under "Chip" or "Processor".
  • On Linux, type lscpu in a terminal to see your processor model and speed.
  • Your processor name usually includes the brand (Intel, AMD, or Apple) and a model number that tells you its generation and performance tier.

What the processor name actually tells you

The processor model number matters because it tells you roughly how old your computer is and how much power it has. An Intel Core i7-12700K is newer and faster than an Intel Core i5-8400. The number in the middle (12 versus 8) shows the generation — higher numbers are newer. The letter at the end (K, H, U) tells you what the processor was designed for: K means it is built for gaming and heavy work, H means laptop performance, and U means long battery life.

AMD uses a similar system. A Ryzen 7 5700X is newer than a Ryzen 5 3600. Apple's naming is simpler: M1, M2, M3, and so on, with "Pro", "Max", or "Ultra" added for higher performance versions.

Why you might need to know your processor

Knowing your processor helps you understand whether a program will run on your computer. Some software requires a certain processor generation or speed. Games often list processor requirements on their store pages. If you are troubleshooting a slow computer, knowing your processor helps you figure out whether the hardware is the bottleneck or whether something else is the problem.

Your processor information is also useful when you are selling your computer or getting it repaired — the technician will ask what you have, and you can tell them exactly.

Where else to find processor information

If you have the original box or paperwork your computer came with, the processor is usually listed there. You can also check your computer manufacturer's website — enter your model number and they will show you the full specifications. For laptops, the processor is often printed on a sticker underneath the device.

If you have already installed monitoring software like CPU-Z (on Windows) or Activity Monitor (on Mac), those tools also display your processor name and current speed.

Frequently Asked Questions

What is the difference between processor cores and speed?

Cores are separate processing units that can work at the same time — more cores mean your computer can do more things in parallel. Speed, measured in GHz, is how fast each core runs. A processor with 8 cores at 3.5 GHz is different from one with 4 cores at 4.0 GHz — the first handles multiple tasks better, the second handles single tasks faster.

Does my processor speed matter for everyday use?

For web browsing, email, and document editing, processor speed matters less than you might think. Most modern processors are fast enough. What matters more is how much RAM you have and whether your hard drive is an SSD. If your computer feels slow, the processor is usually not the problem.

Can I upgrade my processor?

On most laptops and many desktop computers, the processor is soldered to the motherboard and cannot be removed. On some older desktops, you can replace the processor, but you need to check whether your motherboard supports the new model. Check your computer's manual or contact the manufacturer before assuming you can upgrade.

What if System Information shows a different processor than what I expected?

This usually means your computer has a different processor than what was advertised or what you thought you bought. Check your original receipt or the manufacturer's website with your model number. If there is a real discrepancy, contact the seller or manufacturer.