Comparison Asus Vivobook 15 R1500EA [R1500EA-BQ3463] vs Asus VivoBook 15 X1500EA [X1500EA-BQ2298]

Laptops mainly use different variants of DDR (so-called double data transfer memory). Here is a list of common types of such memory:

— DDR3. Third generation DDR RAM. Outperforms outdated DDR2 in terms of speed and power efficiency. However, it is also outdated against the background of the fourth version and new items - DDR5.

— DDR3L. A modification of DDR3 memory that supports operation at a reduced voltage - 1.35 V instead of 1.5 V (Low Voltage - hence the index L). Lower voltage contributes to both lower power consumption and better performance. Note that conventional DDR3 memory cannot be installed in such a slot, while the reverse option is quite possible.

— DDR4. A memory standard released in 2014. Introduced further improvements in speed (up to 25.6 GB / s in the future) and energy efficiency. The most popular among laptops of recent years of release.

— DDR5. The procession of the fifth generation of the DDR standard began at the turn of 2020-2021. It provides for approximately a twofold increase in memory subsystem performance and increased bandwidth compared to DDR4. Instead of a single 64-bit data channel, DDR5 uses a pair of independent 32-bit channels that work with 16-byte packets and allow 64 bytes of information to be delivered per clock on each channel. New memory modules require a voltage of 1.1 V, and the maximum volume of one DDR5 bar c...an reach an impressive 128 GB.

It is worth noting that different types of RAM are not interchangeable.

Some laptops have LPDDR4, LPDDR4X, LPDDR5, LPDDR5X RAM. It was developed by a specialist for mobile devices and is non-expandable, since the corresponding memory modules are built directly into the motherboard. The use of "RAM" standards LPDDR is determined by the achievement of an optimal balance between the performance of the laptop, its size and battery life.

The size of the M.2 SSD module (see "Drive Type") installed in the laptop. Specified in the format "width x length".

This parameter primarily allows you to evaluate the amount of space allocated for the drive, and the possibility of replacing it with a module of a different size. It is worth noting here that the M.2 standard itself allows several options for length and width, but boards with a width of 22 mm are most widely used. The length of such a board usually corresponds to one of the standard options: 30 mm, 42 mm, 60 mm, 80 mm and 110 mm.

In general, the installation of a shorter module of the same width (for example, 22x42 mm instead of 22x60 mm) does not cause problems, but the possibility of using larger components should be clarified separately — not every case allows the installation of M.2 drives with a larger one than the standard module , length. As for specific dimensions, the most common in modern laptops is M.2 22x80 mm SSDs: this size is guaranteed to allow you to change the “native” drive to almost any 22 mm standard module (except for the largest, 22x110 mm — and even for them there can be a place ). There are also smaller sizes — 22x60 mm, 22x42 mm and even 22x30 mm — but much less frequently. And here it is worth saying that the shorter the length of the SSD module, the smaller its capacity, usually.

Note that modern laptops also use M.2 modules of a different width — usually 16 mm with a length of 20 mm (16x20 mm). H...owever, this is a very rare option.