Importantly, you need to make sure the memory you’re using is 204-pin 1600MHz DDR3 SDRAM.

Here we’ve compiled a guideline for the type of RAM you should be looking to buy, depending on your model of iMac:Īny 27-inch iMac models with upgradable RAM manufactured between late 2012 and mid 2015 come with a base memory of 8GB and support a maximum of 32GB. Memory modules evolve over time, and often a new iMac will use a more advanced module. However, we highly recommend checking the type of RAM you need to buy, otherwise the iMac won’t recognize it. Since then, Apple decided to implement four slots, which is still the case today. Until 2007, early models of the iMac had just two memory slots. The price of the memory module will differ based on the iMac model you own.Īpple has guidelines for the maximum amount of RAM each iMac model supports, but upgrade specialists say the devices are capable of supporting more. The first and most obvious task is to identify your iMac to know which memory it is that you will need to purchase. Upgrading your iMac with more RAM is super-easy and requires only a few steps. In these cases, sadly you will need to pay higher prices to get the upgrade you want. Memory isn't removable by users on every 21.5-inch iMac since the late 2012 model despite it being possible to do on 27-inch models. There are a few situations, though, where you might need to contact Apple or an Apple authorized service provider to install the RAM. IMac RAM upgrades are easy for most models, and it’s a good idea to do it yourself, for two reasons: firstly you’ll get to know your iMac better, and secondly it’s possible to save a few hundred bucks rather than having Apple do the expensive upgrade. Also, with physical memory available, macOS won’t need to resort to using virtual memory, which ultimately slows things down. Just consider the fact that the more RAM your iMac has installed, the more windows and/or tabs it can have open at one time without slowing down. Why? The answer is very easy: there is no such thing as too much system memory. You might have heard plenty of times that it’s better to buy a Mac with the maximum amount of RAM (random access memory).

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