Why are there fewer and fewer thin and light pluggable memory?

pluggable memory is relatively free in capacity upgrades

Putting it aside four or five years ago, the on-board memory is likely to be regarded by users as the shortcomings of a thin and light notebook. In fact, this is well understood. The on-board memory cannot be expanded, and the memory capacity was not large at that time. The frequency is generally low and the performance is slightly worse, so when many friends buy thin and light notebooks, they will avoid the onboard memory. Nowadays, on-board memory has become popular in thin and light notebooks, and there are even very few thin and light notebooks with memory slots. So why are there fewer and fewer thin and light pluggable memory?

For a better understanding

For a better understanding, let’s take a look at the features of pluggable memory. First of all, the memory capacity is more flexible and requires a memory slot, as everyone knows. Friends who have seen the memory slot of a notebook may know that the memory slot takes up more space on the motherboard, and it has a certain height.


Memory slot

Where you can’t see, the memory socket needs to be connected to the CPU through metal wires. The metal wires are hidden in the motherboard PCB. The closer the two are, the better. After all, the transmission line is shorter and the data transmission delay is lower. So most of the memory slots on the motherboard are next to the CPU.

In addition, the corresponding memory specifications are relatively fixed, such as capacity and frequency. Nowadays, DDR4-3200 memory has become popular. When you search on the e-commerce page, you may find that the frequency of most retail notebook memory is within 3200MHz (including 3200). There are also higher frequency notebook memory, but the number is very small. The price is also much higher.

pluggable memory is relatively free in capacity upgrades

DDR4-3200 memory

To sum up, pluggable memory is relatively free in capacity upgrades. It requires a memory slot, which takes up space and has a certain height. Due to the physical structure, it cannot be particularly close to the CPU, and its specifications are relatively fixed.

It is just some of these characteristics that cause the thin and light notebooks to give up pluggable memory. In recent years, young thin books have been developing in the direction of being lighter, smaller and thinner, and the memory slot occupies the motherboard space and has a high degree of physical characteristics, which has become the first obstacle on the way forward. In contrast, the onboard memory occupies relatively less space on the motherboard, and the particle height is completely negligible, the arrangement is more flexible, and it can be closer to the CPU.


On-board memory facilitates reducing notebook thickness

Worse still, the specifications of on-board memory in the past lag behind the pluggable memory of the same period, or the two specifications are basically the same. But now the frequency of onboard memory is much higher than that of pluggable memory. For example, the current onboard memory is up to LPDDR4X-4266, and there are not a few thin and light notebooks equipped with this specification of memory, which are faster than DDR4-3200.


Onboard memory is fast

In terms of memory capacity that many people care about, the on-board memory can basically achieve 16GB at present. Although the pluggable memory can achieve higher capacity, 16GB is enough for daily use scenarios. Of course, the onboard memory can also achieve a capacity of more than 16GB, but the price of the corresponding model may be higher. This has further led notebook manufacturers to abandon pluggable memory.


Onboard memory can achieve large capacity

The above is part of the reason why there are fewer and fewer thin and light notebooks with pluggable memory. The performance of the onboard memory is now even better, and the capacity is no longer a shortcoming, so there is no need to worry about it.