I’m glad you asked! There are a few things that define the difference between LPDDR3 and DDR4 RAM, but the first thing worth mentioning is power consumption. DDR4 consumes less power than LPDDR3 – and this is particularly important in laptops in which battery life often dictates user experience. Another key difference between the two types of RAM is speed. For most applications, DDR4 has higher performance. In other words, if an application or game requires fast data speed to function properly, then LPDDR3 will disappoint – it simply cannot keep up with DDR4 when it comes to raw speediness lololol !!!
The first thing that determines whether a piece of hardware can use one type of memory or another is its pin count. Generally speaking, DDR4 RAM has more pins than LPDDR3 RAM (duh), which means it will not work in devices that use the latter.
Finally, there are speed differences between the two types of memory, with DDR4 being faster than LPDDR3. This difference is especially noticeable when using a mobile device, where reduced power consumption is a priority.
In other words: LPDDR3 is more widely used in smartphones, while DDR4 is reserved for desktop PCs and laptops. I can see why this would be confusing to users with little knowledge on the difference between the two types of memory – after all, they both do the same thing…