How to check Processor Cache Memory Size on Windows 11, 10, 8 and 7?

Unraveling Processor Cache Memory in Windows Systems

The intricacies of computer architecture can seem daunting, but they provide fascinating insights into how our machines deliver rapid performance. One such integral component, often overlooked, is the cache memory associated with the processor. So, what exactly is cache memory? Think of cache, or “CPU cache memory,” as the system’s short-term memory, a reservoir that holds frequently accessed data, ensuring the CPU doesn’t waste precious time fetching data from the main hard drive. This intermediary step speeds up computational processes and enhances overall system responsiveness.

Each processor comes packed with multiple caches designed to store specific types of data and instructions. Often referred to as L1, L2, and L3 caches, they act as bridges, minimizing the lag between the RAM and the CPU. Essentially, these caches preemptively store frequently utilized information, enabling the processor to access it at lightning speed, without delving into the main memory (RAM). As a result, operations are expedited, leading to smoother and more efficient system performance.

Though cache memory serves as a valuable intermediary, it’s worth noting that it’s more costly than regular RAM. This cost discrepancy is the reason why a computer tends to have lesser cache memory compared to RAM. Let’s delve deeper into the cache hierarchy:-

  • L1 Cache: The primary and fastest cache, often embedded directly within the CPU chip. However, due to its smaller storage capacity, modern processors rarely come with only an L1 cache.
  • L2 Cache: Serving as a secondary reservoir, the L2 cache can either be integrated within the CPU or reside on a separate chip, connected via a high-speed bus.
  • L3 Cache: This tertiary cache is designed to back up the L1 and L2 caches. Though not as swift as its counterparts, the L3 cache trumps the RAM in speed and works to amplify the efficiency of L1 and L2 caches.

In layman’s terms, more L2 and L3 cache translates to a snappier system response and quicker data access. If you’re curious about your Windows computer’s cache memory, be it on Windows 11, 10, 8, or 7, this risewindows guide is tailored for you. Using simple tools and methods like the Command Prompt, Task Manager, and CPU-Z, we will unravel the mystery of your processor’s cache size. Dive in, and let’s enhance your computational understanding!

How to Check Processor Cache Memory Size in Windows using Command Prompt?

Use the following to check the processor cache memory size in Windows using Command Prompt:-

Step 1: Go to the Command Prompt on your computer.

To open the Command Prompt window, press the Windows logo + R keys at the same time to enter the Run dialogue box. Then, in the Run box, type cmd and push Enter from the keyboard.

Step 2: In the Command Prompt window, type the following and press Enter on the keyboard:-

wmic cpu get L2CacheSize, L3Cachesize

The above command returns the size of the L2 and L3 caches in KB. The processor features a 256 KB L2 cache and a 3072 KB L3 cache, as shown in the above figure.

How to View Processor Cache Memory Size in Windows through Task Manager?

Use the following steps to view or see the process cache memory size:-

Step 1: Open the Task Manager on your system.

You can use the Ctrl + Shift + Esc keys simultaneously on your computer to do so.

Step 2: If the Task Manager opens in compact form, click on the More details button to view it in full mode.


Step 3: Now, click on the Performance tab in the Task Manager window. Then, in the left pane, click on CPU. The sizes of the L1, L2, and L3 caches are listed at the bottom of the right pane.

How to Know Processor Cache Memory Size in Windows using CPU-Z?

Use the following steps to find the processor cache memory size using freeware CPU-Z by performing the following:-

Step 1: Download the CPU-Z freeware utility from the official website.

Step 2: Install it on your computer and then run this tool.

Step 3: In Windows 11 or 10, select the Caches tab to view the specifics of Processor Cache Memory Size. You may use this program to check the cache size on Windows 8 and 7 as well.


Understanding the cache memory of a processor provides insights into a computer’s performance capabilities. The cache serves as a rapid-access storage area, improving efficiency by minimizing the time the CPU spends accessing data from the main memory. With tools and methods highlighted in this risewindows guide, including the Command Prompt, Task Manager, and CPU-Z, users can easily determine their processor’s cache memory size, enhancing their knowledge and grasp of their system’s inner workings.


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