M2 includes superfast unified memory, which is more efficient than traditional RAM. This single pool of high-performance memory allows apps to quickly share data between the CPU, GPU, and Neural Engine. This means you can do more with unified memory than you could with the same amount of traditional RAM.
Your Mac mini comes standard with 8GB of memory — more than enough for the things you do every day and for running multiple applications at once. For bigger tasks, like editing high-resolution images, you can configure your Mac mini with up to 24GB. The more unified memory you choose, the more apps you can run simultaneously with a higher rate of performance.
Note: Unified memory is not user accessible. If you think you’ll need additional memory, consider upgrading at the time of purchase.