Comparison Lenovo Ideapad 320 15 [320-15IKB 80XL02S7RA] vs Asus X556UQ [X556UQ-DM872T]

The result shown by the laptop processor in the Passmark CPU Mark test.

Passmark CPU Mark is a comprehensive test that is more detailed and reliable than the popular 3DMark06 (see above). It checks not only the gaming capabilities of the CPU, but also its performance in other modes, based on which it displays the overall score; this score can be used to fairly reliably evaluate the processor as a whole (the more points, the higher the performance).

The amount of random access memory (RAM or RAM) actually installed in the laptop.

The amount of RAM is one of the most important indicators characterizing the overall flow Rate of the system. The more RAM installed in a laptop, the better it will cope with “heavy” resource-intensive programs, and the more tasks can be performed on it simultaneously without “brakes” and failures.

Today , 4 GB of RAM is considered the minimum required. A capacity of 8 GB is usually enough for comfortable household use and simple games, 16 GB and 32 GB are enough for running resource-intensive applications and confidently launching modern games. And in advanced gaming and professional laptops there are also larger amounts of RAM - 64 GB or even more.

Note that many laptop models allow you to increase the available amount of RAM; For more details, see “Maximum installed volume”.

The maximum amount of RAM that can be installed on a laptop. It depends, in particular, on the type of memory modules used, as well as on the number of slots for them. Paying attention to this parameter makes sense, first of all, if the laptop is bought with the expectation of and the amount of actually installed memory in it is noticeably less than the maximum available. So laptops can be upgraded in RAM to 16 GB, 24 GB a>, 32 GB, 48 GB, 64 GB and even more - 128 GB.

The type of dedicated graphics memory used by the discrete graphics card (see "Video Card Type").

— GDDR3. The third generation of memory based on double data transfer technology. Compared to the previous standard, GDDR 2 is capable of operating at higher frequencies and less heat. However, it is gradually being replaced by more advanced standards, in particular GDDR5.

— GDDR5. Fifth generation graphics memory with double data transfer; in this generation, for the first time, the DDR3 RAM standard was taken as the basis. It is considered quite advanced, typical mainly for high-performance video cards.

— GDDR5X. A modification of the GDDR5 described above, introduced in early 2016. Compared to the original, it provided a 2-fold increase in maximum throughput, which accordingly affected the overall performance. However such video cards are not cheap, which is why they are used mainly in premium gaming laptops.

— GDDR6. Further, after GDDR5X, the development of GDDR-type graphic memory, introduced in 2017. Provides twice the speed of the original GDDR5, with slightly less power consumption; GDDR6 capabilities are enough, in particular, for use in virtual reality systems and work with resolutions above 4K. The use of such memory is typical for the most advanced video cards installed mainly in powerful gaming laptops.

— HBM2. The second generation of HBM type memory. Unlike the GDDR described above, HBM is not a modificat...ion of the usual "RAM" of the DDR type, but a separate type of memory, developed including for video cards. Due to the design features, such memory provides high bandwidth at a low clock frequency; the latter has a positive effect on power consumption and heat dissipation, and in terms of performance, HBM2 outperforms even the most advanced versions of GDDR. The disadvantage of this option is traditional — high price; because of it, video cards with this type of memory are installed mainly in premium laptops.

The type of drive that is installed in the laptop.

Classic hard drives (HDD) in modern laptops are quite rare in their pure form. Instead, solid-state SSD modules are becoming more common, including in HDD+SSD and SSHD+SSD combinations. Also note that among such modules, M.2 SSDs are very common, which can also support NVMe and/or belong to the advanced Intel Optane series. Here are the main features of these options in various combinations (as well as other drive options that can be found in modern laptops):

— HDD. Traditional hard disk, not complemented by any other type of storage. HDDs are notable for their low cost per gigabyte of capacity, which allows you to create very capacious and at the same time quite inexpensive media. On the other hand, such storages are considered less perfect than SSDs: in particular, they are rather slow, and they also do not withstand shocks and shocks (the latter is especially true in light of the fact that laptops are originally portable devices). Therefore, this option is quite rare nowadays, mainly among low-cost configurations.

— SSD. Solid-state memory based on flash technology. In general, drives of this type are noticeably more expensive than HDDs of a similar volume, but they have a number of advan...tages over them — first of all, this is a high speed of operation, as well as the ability to endure quite strong shocks and vibrations without any problems. However, we emphasize that in this case we are talking about SSDs of the original format that do not use the M.2 interface, do not belong to the Optane series and are not eMMC or UFS modules (see below for all these features). This is the simplest and most affordable type of flash memory — in particular, it usually uses a SATA interface connection, which does not allow you to realize the full potential of such memory. On the other hand, even “regular” SSD modules still work noticeably faster than HDDs, and they are noticeably cheaper than more advanced solutions.

— SSD M.2. SSD module using M.2 connector. For SSDs in general, see above; and the M.2 connector was specifically designed for advanced yet tiny internal components, including solid state drives. One of the features of such a connection is that it is most often carried out according to the PCI-E standard — this provides a high data transfer rate (up to 8 GB / s, potentially more) and allows you to use all the features of SSD drives. At the same time, there are M.2 modules that work on the older SATA interface — its speed does not exceed 600 MB / s, but such equipment is cheaper than modules with M.2 PCI-E. For details, see "M.2 drive interface" — it is this item that allows you to evaluate the specific capabilities of SSD M.2.

— SSD M.2 Optane. An M.2 SSD (see above) belonging to the Intel Optane series. The main feature of such modules is the use of 3D Xpoint technology — it differs significantly from NAND, on which most conventional SSD modules are built. In particular, 3D Xpoint allows you to access data at the level of individual cells and do without some additional operations, which speeds up work and reduces delays. In addition, such memory is much more durable. Its main drawback is a somewhat high cost. It is also worth noting that the superiority of Optane over more traditional SSD modules is most noticeable at the so-called low queue depth — that is, with a small load on the drive, when a small number of requests are received at the same time. However, most everyday tasks (working with documents, surfing the web, relatively undemanding games) are implemented in this mode, so this moment can be considered an advantage — especially since the superiority of Optane, although it decreases, does not disappear with increasing load.

— SSD M.2 NVMe. NVMe is a data transfer standard designed specifically for solid-state SSD memory. It uses the PCI-E bus and allows you to maximize the potential of such memory, significantly increasing the data exchange speed. This can be either the only drive on board or an addition to an HDD or SSHD. Initially, it was believed that NVMe makes sense to be used mainly on high-performance systems, in particular gaming. However, the development and cheaper technology has led to the fact that such drives are also found in simpler laptops.

— HDD+SSD. The presence in the laptop of two separate drives — HDD and a regular SSD (not M.2, not Optane). The advantages and disadvantages of these types of drives are described in detail above; and their combination in one system allows you to combine the advantages and partially compensate for the shortcomings. SSD in such cases usually has a noticeably smaller volume than HDD, and is used to store data for which high access speed is critical: the operating system, work programs, etc. In turn, it is convenient to store information on a hard disk that takes up a significant volume and at the same time does not require a special access speed; a classic example is multimedia files and documents. In addition, the solid state module can be used as a high-speed cache for a hard drive — similar to the SSHD described below. However, this usually requires special software settings, while the "two separate drives" mode is usually available by default.
It is also worth noting that modern laptops are increasingly using HDD bundles not with conventional SSDs, but with more advanced M.2 modules (including M.2 Optane). However, this option also continues to be used — mainly among relatively inexpensive configurations.

— SSHD. A combination drive that combines a hard disk drive (HDD) and a solid state drive (SSD). It differs from the HDD + SSD bundle described above in two ways. Firstly, both carriers are in the same case and are perceived by the system as a single unit. Secondly, the hard drive is mainly used directly for data storage, and SSD memory usually performs an auxiliary function — it works as a high-speed cache for the HDD. In fact, it looks like this: the data from the hard drive, which the user most often accesses, is copied to the SSD and, at the next access, is loaded from the solid state media, and not from the HDD. This allows you to significantly speed up the work compared to conventional hard drives. However in terms of speed, such “hybrids” are still inferior even to conventional SSDs, not to mention M.2 and Optane solutions — but they are much cheaper.

— HDD+SSD M.2. Combination of a classic hard drive with an M.2 solid-state SSD module. For more information about this combination, see "HDD + SSD": almost everything stated there is also relevant for this case, adjusted for the fact that M.2 SSDs are able to provide higher speeds (see also above — in p. " SSD M.2").

— HDD + Optane M.2. Combining a classic hard drive with an Intel Optane M.2 solid-state SSD module. This combination is generally similar to the “HDD + SSD” combination (see above), adjusted for the advanced capabilities of Optane drives (see also “SSD M.2 Optane” above).

— SSHD+SSD M.2. Combining an SSHD with an M.2 SSD. In general, it is similar to the “HDD + SSD M.2” combination (see above), adjusted for the fact that instead of a regular hard drive, a more advanced and high-speed hybrid drive is used (see also above about it). This further increases the cost, but improves performance.

— eMMC. A type of solid-state drive, originally used as built-in permanent memory for smartphones and tablets, but has recently been installed in laptops. It differs from SSD (see above), on the one hand, by lower cost and good energy efficiency, on the other hand, by lower speed and reliability. Thus, eMMC is now found mainly among transformers and laptop-tablets (see "Type") — for them, low power consumption is more important than maximum performance. Also note that such drives are usually made built-in and do not require replacement.

— HDD + eMMC. Combining a classic hard drive with an eMMC solid state module. The features of each type of drive are described in detail above, and their combination is used mainly in laptop-tablet devices (see "Type"). At the same time, the eMMC drive is installed at the top of the device and is designed to store the operating system and the most important data that needs constant access; and the HDD, located in the lower half, is used as additional storage for large amounts of information (for example, movie collections).

— SSD M.2 + eMMC. The combination of two solid-state modules in one laptop — SSD M.2 and eMMC. See above for details on the features of both types of memory, and their combination is a rather exotic option. It is mainly used to increase the total amount of solid-state memory without a significant increase in cost (remember, eMMC is cheaper than an M.2 SSD of the same volume). In addition, while the eMMC module is usually made built-in, the M.2 SSD is removable by definition, and can be replaced with another drive if necessary.

— UFS. Another type of solid-state memory, originally designed for smartphones and tablets — along with the eMMC described above. It differs from the latter both in high efficiency and increased cost. Thus, such drives are extremely rare among laptops: where eMMC capabilities are not enough, manufacturers usually use full-fledged SSDs.

Connection connectors provided in the design of the laptop.

This paragraph mainly indicates data on video outputs: VGA, HDMI(versions 1.4, 2.0, 2.1 and their varieties), miniHDMI / microHDMI, DisplayPort, miniDisplayPort). In addition, the presence of other types of connectors can be specified here: audio S / P-DIF, service COM port. But information about interfaces such as full-sized USB, USB-C, Thunderbolt and LAN is provided in separate paragraphs (see below).

— VGA. Analogue video output, also known as D-Sub 15 pin. Technically considered obsolete: it has low noise immunity, does not provide sound transmission, and the maximum supported resolution in fact does not exceed 1280x1024. However, VGA inputs are still quite common in monitors today, and are also found in other types of video equipment — in particular, projectors. Therefore, some modern laptops, mainly for multimedia purposes, are equipped with similar outputs — counting on connection to the mentioned video devices.

— HDMI. The most popular modern interface for working with HD content. Uses digital data transmission, allows you to transmit high-def...inition video and multi-channel audio over one cable at the same time. Most modern monitors, TVs, projectors, and other HD-enabled video equipment have at least one HDMI input; so outputs of this type are extremely common in modern laptops.

— microHDMI and miniHDMI. Reduced varieties of the HDMI described above: they are completely similar in functionality and differ only in the size of the connector. They are installed mainly in the thinnest and most compact laptops, for which full-size HDMI is too cumbersome.

The HDMI and mini/microHDMI ports on modern laptops may correspond to different versions:

• v 1.4. The earliest of the commonly used standards, released in 2009. Allows you to transmit a signal in resolutions up to 4096x2160 at a frame rate of 24 fps, and with Full HD resolution, the frame rate can reach 120 fps; 3D video transmission is also possible.
• v 1.4a. The first addition to version 1.4, in which, in particular, two additional 3D video formats were added.
• v 1.4b. The second update of the HDMI 1.4 standard, which introduced only minor clarifications and additions to the v 1.4a specifications.
• v2.0. Global HDMI update introduced in 2013. Also known as HDMI UHD, it allows you to stream 4K video at frame rates up to 60 fps. The number of audio channels can reach 32, and up to 4 audio streams can be broadcast simultaneously. In addition, support for the 21:9 aspect ratio and some improvements regarding 3D content have been introduced.
• v2.0a. First HDMI 2.0 update. A key innovation was compatibility with HDR content (see "HDR support").
• v2.0b. Second update of version 2.0. Key innovations have affected mainly work with HDR — in particular, support for HDR10 and HLG has been added.
• v2.1. One of the newest versions, released in the fall of 2017. Further increases in bandwidth have made it possible to support 4K and even 8K video at frame rates up to 120 fps. In addition, key improvements include enhanced HDR capabilities. Note that to use the full capabilities of HDMI v2.1, HDMI Ultra High Speed cables are required, although basic functions are available with regular cables.

— Display port. Digital high-speed port, allows you to transfer both video and audio in HD quality. It is similar in many respects to HDMI, provides a higher data transfer rate and allows the use of longer cables, but is less common, mainly used in computer technology.

— miniDisplayPort. A smaller version of the DisplayPort described above, designed to make the connector more compact; except for the dimensions, it is no different from the original interface. Some time ago it was a regular video connector for Apple laptops; and even the Thunderbolt interface that replaced it, in versions 1 and 2 (see below), uses a connector identical to the miniDisplayPort connector.

Both full-size DisplayPort and its smaller version may be different versions. Here are the most popular options today:

• v 1.2. The earliest version common in laptops, released in 2010. Among the most important innovations presented in this version are 3D support, the ability to work simultaneously with several video streams for serial connection of screens (daisy chain), as well as the ability to work through the miniDisplayPort connector. Bandwidth v 1.2 is enough to fully support 5K video at 30 frames per second and 8K video — with certain limitations.
• v 1.2a. Update version 1.2, released in 2013. One of the most noticeable innovations is the ability to work with AMD FreeSync (see above). Bandwidth and supported resolutions remain unchanged.
• v 1.3. DisplayPort version released in 2014. Compared to the previous version, the throughput has been increased by 1.5 times for 1 line and almost 2 times for the whole connector (8.1 Gbps and 32.4 Gbps, respectively). This, among other things, made it possible to provide full support for 8K video at 30 fps, as well as increase the maximum frame rate in 4K and 5K standards to 120 and 60 fps, respectively. In daisy chain mode, this standard makes it possible to work with two 4K UHD (3840x2160) screens at a frame rate of 60 Hz, or with four 2560x1600 screens at the same frequency. In addition, Dual-mode support was introduced in this version, providing compatibility with HDMI and DVI interfaces through the simplest passive adapters.
• v 1.4. Version introduced in March 2016. Bandwidth, compared to the previous standard, remained unchanged, but some important features were added — in particular, support for Display Stream Compression 1.2 compression, HDR10 standard and Rec. 2020, and the maximum number of supported audio channels has increased to 32.
• v 1.4a. An update released in 2018 "quietly" — without even an official press release. The main innovation was the update of Display Stream Compression technology from version 1.2 to version 1.2a.

— S/P-DIF. Output for digital audio transmission, including multi-channel. It has two varieties — optical and electrical; the first is absolutely insensitive to interference, but uses rather delicate cables, the second does not require special care in handling, but can be subject to pickups (although the wires are usually made shielded). Laptops use mainly optical S/P-DIF, while for compactness this connector is combined with a mini-Jack jack for connecting headphones. However, anyway, it's ok to clarify the specific features of this interface separately.

— COM port. Universal interface for connecting various external devices — in particular, dial-up modems — as well as for direct connection between two computers. Also known as RS-232 (after the connector). Nowadays it is considered obsolete due to the spread of more compact, faster and more functional interfaces, primarily USB. However, many types of equipment, including specialized ones, use the COM port as a control interface. Such equipment includes uninterruptibles, satellite receivers and communication devices, security and alarm systems, etc. Thus, COM ports, although almost never used in consumer-level laptops, are still found in some specialized models.

Number of USB 2.0 ports provided in the laptop.

USB of all versions is the most popular modern interface for connecting various peripherals to computer - from keyboards, mice and flash drives to very original devices. It can also be used to charge smartphones and other gadgets. The more USB ports laptop has, the more peripherals you can connect to it without using splitters. Specifically, USB 2.0 is the earliest version found in modern laptops. It uses regular full-size connector and provides speeds of up to 480 Mbit. In light of the emergence of faster and more advanced versions of USB 2.0, it is considered obsolete; more and more laptops are being produced that do not have such connectors at all. At the same time, this interface is still far from completely disappearing, especially since its capabilities are quite sufficient for many peripheral devices.

Number of USB 3.2 gen1 ports provided in the laptop. Initially, this interface was called USB 3.0, later USB 3.1 gen1.

Be that as it may, USB is the most popular modern interface for connecting various peripherals to computer - from keyboards, mice and flash drives to very original devices. It can also be used to charge smartphones and other gadgets. And USB 3.2 gen1 is the successor to the popular USB 2.0. In this version, the data transfer speed was increased 10 times - up to 4.8 Gbit/s, and the power supply for external devices was also increased. At the same time, devices with other versions of USB can be connected to the USB 3.2 gen1 port - the main thing is that they have full-size USB A plugs and have enough power for normal operation.

As for the number of USB connectors, the more there are, the more peripherals you can connect to the laptop without using splitters.

The capacity of the complete laptop battery in watt-hours.

Higher capacity allows the laptop to work longer on a charge, all other things being equal. However, keep in mind that the actual battery life will depend not only on the characteristics of the battery, but also on the power consumption of the laptop itself — and it is determined by both hardware characteristics and installed software. Therefore, only models with similar characteristics can be compared with each other according to this indicator. And if you need a “long-playing” laptop, you should choose it not by battery capacity, but by directly stated operating time.

As for watt hours, this is a less popular unit of capacity than milliamp hours, but more physically correct: it accurately describes the amount of energy stored by a battery. Thanks to this, in terms of capacity in Wh, it is possible to compare batteries with different nominal voltages (whereas this is not allowed for mAh — additional calculations must be carried out using special formulas). At the same time, Wh can be easily converted to mAh if the battery voltage is known: for this, the capacity in Wh must be divided by the voltage and multiplied by 1000.