The fastest way to find your PC specs

On Windows, press the Windows key and type "System Information" into the search box, then open the app. You will see your processor, RAM, and operating system version on the first screen. On Mac, click the Apple menu in the top-left corner, select "About This Mac", and the same information appears immediately.

Both methods take under 30 seconds and show you the details most people need: how much memory your computer has, what processor it uses, and which version of Windows or macOS you are running. If you need more detailed information about your graphics card, storage, or other components, the steps differ slightly between the two systems.

Key Takeaways

  • Windows users can open System Information by pressing the Windows key and typing "System Information" to see processor, RAM, and OS version instantly.
  • Mac users click the Apple menu and select "About This Mac" to find the same core information in one screen.
  • For graphics card details on Windows, open Device Manager and expand "Display adapters" to see your GPU model.
  • Storage information appears in File Explorer on Windows (right-click "This PC") and Finder on Mac (click the drive and check "Get Info").
  • Third-party tools like CPU-Z on Windows or Disk Diag on Mac can show additional technical details if you need them.

Finding your processor and RAM on Windows

Open the Start menu and type "System Information" without quotes. Click the app when it appears. The window that opens shows your processor name and speed under "Processor", and your total RAM under "Installed RAM". Write down both numbers — they are the two specs you will need most often, especially if you are checking whether your computer can run a specific program.

The System Information window also displays your Windows version and build number. If someone asks what version of Windows you have, this is where you find it. The "System Type" line tells you whether you are running 32-bit or 64-bit Windows, which matters for some software installations.

Finding your processor and RAM on Mac

Click the Apple menu in the top-left corner of your screen and select "About This Mac". A window appears showing your processor model and speed, the amount of memory installed, and your macOS version. Unlike Windows, Mac displays this information in a single, simple list.

If you need to know your Mac's model name (for example, "MacBook Pro 16-inch, 2021"), it appears at the very top of this same window. This information is useful when looking up repair costs or checking compatibility with software.

Checking your graphics card and display information

On Windows, right-click your desktop and look for an option like "NVIDIA Control Panel" or "AMD Radeon Settings" if you see one. If not, open Device Manager by pressing Windows key + X and selecting it from the menu. Expand "Display adapters" and you will see your graphics card listed there. The name tells you the model — for example, "NVIDIA GeForce RTX 3060" or "AMD Radeon RX 6700".

On Mac, click the Apple menu, select "About This Mac", then click the "Graphics" tab. Your GPU model and memory appear there. If you have multiple graphics cards (some Macs do), both will be listed.

Finding your storage and hard drive information

On Windows, open File Explorer and right-click "This PC" in the left sidebar, then select "Properties". You will see how much total storage your computer has and how much is currently in use. To see individual drive details, right-click each drive and select "Properties" to check its capacity and free space.

On Mac, click the Apple menu, select "About This Mac", then click the "Storage" tab. A colored bar shows how much space is used by different categories — apps, documents, photos, and so on — plus how much free space remains. If you have multiple drives, each one appears as a separate row.

Using third-party tools for detailed specs

If you need more technical information than System Information or About This Mac provides, CPU-Z is a free Windows tool that shows detailed processor specs, memory timing, and motherboard information. Download it from cpuid.com, run the installer, and open the app — no additional setup is needed. The tool displays information in tabs: CPU, Caches, Mainboard, Memory, and SPD.

On Mac, Disk Diag is a free app that shows detailed storage and drive health information. Download it from the Mac App Store, open it, and it displays your drive's model, capacity, and performance metrics. For graphics card details beyond what About This Mac shows, GPU Monitor Pro is another paid option, though the built-in Graphics tab usually contains what you need.

What to do if you cannot find a specific spec

If System Information or About This Mac does not show a detail you are looking for, check your computer's original documentation or receipt — it often lists the full specs. You can also search online for your computer's model number plus the spec you need. For example, searching "Dell XPS 13 9310 RAM" will show you what memory options that model came with.

If you are trying to check whether your computer can run a specific program, look at the program's system requirements page instead of hunting for individual specs. The requirements page tells you the minimum processor speed, RAM, and storage needed, and you can compare those numbers directly to what you found in System Information or About This Mac.

Frequently Asked Questions

What does RAM mean and why does it matter?

RAM is the memory your computer uses while programs are running. More RAM means you can have more programs open at once without slowdowns. Most people need 8 GB for everyday use like browsing and email, while video editing or gaming often requires 16 GB or more.

How do I know if my computer is 32-bit or 64-bit?

On Windows, open System Information and look at the "System Type" line — it will say either "x86-based PC" (32-bit) or "x64-based PC" (64-bit). On Mac, click About This Mac and look at the "Processor" line — if it says "Apple Silicon" or "Intel Core i7", you have a 64-bit Mac. All modern computers are 64-bit.

Can I upgrade my processor or RAM?

RAM can often be upgraded on desktop computers and some older laptops, but most modern laptops have RAM soldered to the motherboard and cannot be changed. Processors are almost never upgradeable on any computer. Check your computer's manual or search online for your specific model to see what upgrades are possible.

Why do I need to know my graphics card model?

Your graphics card determines whether you can run games or video editing software smoothly. When you look up a game's system requirements, it lists specific GPU models or performance tiers. Knowing your card's exact model lets you compare it to those requirements.

What if System Information shows different RAM than I expected?

Your computer may have been sold with less RAM than you thought, or some RAM may be reserved for system use. If you installed extra RAM yourself, restart your computer — sometimes new RAM is not recognized until after a restart. If the amount still does not match, one of the modules may not be fully seated in its slot.