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Comparison Lenovo IdeaCentre AIO 520 27 520-27IKL F0D0002BUA vs Asus Zen AiO ZN242IF ZN242IFGK-CA044T

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Lenovo IdeaCentre AIO 520 27 (520-27IKL F0D0002BUA)
Asus Zen AiO ZN242IF (ZN242IFGK-CA044T)
Lenovo IdeaCentre AIO 520 27 520-27IKL F0D0002BUAAsus Zen AiO ZN242IF ZN242IFGK-CA044T
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Main
Retractable webcam.
Product typemonoblockmonoblock
Screen
Screen size27 "23.8 "
Resolution2560x1440 (16:9) px1920x1080 (16:9) px
Panel typeIPSIPS
Surface treatmentanti-glarematte
Brightness250 cd/m2
Slim bezel
CPU
ChipsetIntel B250Intel HM170
Typedesktopportable
SeriesCore i5Core i5
Model7400T7300HQ
Cores44
Threads4
Speed2.4 GHz2.5 GHz
TurboBoost / TurboCore3 GHz3.5 GHz
L2 cache1024 KB1024 KB
L3 cache6 MB6 MB
Memory
RAM16 GB16 GB
Memory typeDDR4DDR4
Speed2400 MHz2400 MHz
Number of slots22
Graphics card
Graphics card typededicateddedicated
Graphics card modelGeForce 940MXGeForce GTX 1050
Graphics memory2 GB4 GB
Memory typeGDDR5GDDR5
Storage
Drive typeHDD+SSDHDD+SSD
Drive capacity2000 GB
1000 GB /HDD/
Rotational latency7200 rpm5400 rpm
2nd drive capacity128 GB
128 GB /SSD M.2/
NVMe
M.2 connector
Back panel
Connectors
HDMI output
HDMI output
USB 2.021
USB 3.2 gen113
USB C 3.2 gen11
Front Panel
Optical driveis absentis absent
mini-Jack (3.5 mm)
USB 3.2 gen111
Card reader
 /3 in 1/
 /SD/MMC/
Multimedia
LAN (RJ-45)1 Gbps1 Gbps
Wi-FiWi-Fi 5 (802.11aс)Wi-Fi 5 (802.11aс)
Bluetooth
 /v 4.0/
 /v 4.1/
Sound2.02.0
Speakers
 /2 x 3W/
 /2 x 3W/
Built-in microphone
Webcam
 /1920x1080 (fullHD)/
 /1280x720 (HD)/
Face scanner (FaceID)
Kensington / Noble lock
General
PSU power150 W180 W
Preinstalled OSWindows 10 HomeWindows 10 Home
Materialplasticaluminium
Dimensions (HxWxD)
474x 615x64 mm /without stand/
406x540x193 mm
Weight8.83 kg5 kg
Color
Added to E-Catalogmay 2018may 2018

Screen size

Diagonal of the screen installed in a monoblock (see "Type").

In general, the larger the diagonal, the more advanced both the screen and the computer as a whole are considered. The large display size is convenient for games, movies, and some special tasks like layout of large printed materials; in addition, a higher resolution can be provided for such a screen, and more space is available inside the case for advanced components. On the other hand, a larger monoblock will cost much more than a relatively small one, even if the other characteristics of such models are completely the same. In addition, the power of the hardware is not directly related to the size of the screen — high-end monoblocks can be quite small.

As for specific numbers, a diagonal of 20" or less is considered very limited nowadays, monoblocks of 21.5" are small, a 24" screen is medium, and values of 27" and 32" indicate large sizes.

Resolution

Resolution of the screen installed in the monoblock (see "Type").

The higher the resolution, the clearer and more detailed image the screen can produce, but the more expensive it is. In addition, high resolutions require corresponding powerful graphics, which further affects the price of the entire computer. The minimum indicator for modern monoblocks is actually 1366x768 — this resolution allows, in particular, to play HD 720p video in proper quality. However, nowadays, the more advanced format is most widely used — Full HD, providing a resolution of 1920x1080. And in high-end monoblocks with a large diagonal and powerful graphics, there are also more solid resolutions — Quad HD(2560x1440, 3440x1440), Ultra HD 4K(3840x2160, 4096x2304) and even 5K(5120x2880) standards.

Surface treatment

Type of own screen cover in monoblock (see "Type").

Glossy. The most common type of coating in modern PCs. Such a surface (with the same characteristics of the matrix) noticeably surpasses the matte one in terms of brightness and colour saturation in the visible image. The main disadvantage of gloss is the tendency to glare in bright ambient light; however, all-in-one PCs are not often used in such conditions, and this phenomenon can be compensated by increasing the brightness of the backlight. With all this, this type of coverage is quite inexpensive.

Glossy (anti-glare). A modified version of the glossy finish (see above) that, as the name suggests, is more resistant to glare. At the same time, in terms of picture quality, such screens are usually not inferior to classic gloss. On the other hand, the anti-reflective surface is somewhat more expensive, and its advantages in this case are not often really significant. Therefore, screens with such a coating are found in modern monoblocks much less often than glossy ones.

Matte. The key advantages of a matte finish are its low cost and the almost complete absence of glare, even in bright ambient light. On the other hand, the image on such a screen is dimmer than on glossy displays (including anti-glare) with similar matrix characteristics. Therefore, this type of coating is rarely used...nowadays — mainly in relatively inexpensive household and business models, for which a bright picture with saturated colours is not fundamental.

Brightness

The maximum brightness provided by the monoblock screen (see "Type").

The more intense the ambient light, the higher the screen brightness should be for normal visibility. The most "dim" screens in monoblocks are capable of delivering up to 200 cd / m2 — this is more than enough to work under ordinary artificial lighting, but under sunlight it will take at least 300 cd / m2. At the same time, modern monoblocks can also have a larger margin of brightness — in some models up to 500 cd / m2. This expands the possibilities for customizing the screen for different situations and user preferences. In addition, high brightness has a positive effect on image quality and colour saturation, in light of which it is often a sign of a fairly advanced screen.

Chipset

The model of the chipset used in the standard configuration of the PC.

A chipset can be described as a set of chips that provides the combined operation of the central processor, RAM, I / O devices, etc. It is this chipset that underlies any motherboard. Knowing the chipset model, you can find and evaluate its detailed characteristics; most users do not need such information, but for specialists it can be very useful.

Type

The general type (specialization) of the processor installed in the PC.

Desktop. Processors originally designed for full-sized desktop computers. The specific characteristics of such CPUs can vary quite widely; however, in general, they have higher processing power than mobile chips, as well as a wider range of additional features and special solutions to improve efficiency. And with the same actual performance, desktop solutions are much cheaper than mobile ones. The downside of these advantages is the relatively high energy consumption and heat dissipation. However, for full-sized PCs, these shortcomings are not critical, so almost all traditional desktop computers, as well as most all-in-ones (see "Type") are equipped with this particular type of processor; and for powerful gaming models, a desktop CPU is mandatory by definition. On the other hand, this category also includes rather economical and "cold" low-power chips, which are suitable for compact computers that do not require high performance, such as nettops and thin clients.

Mobile. This term in this case refers to processors originally designed for laptops. Most of these CPUs use the same basic architecture as desktop models — x86. Their main differences are: on the one hand, reduced energy consumption, reduced clock frequencies and low heat generation, on the other hand, less computing power in general. However the actu...al characteristics of such processors may vary from model to model, some laptop solutions are not inferior to fairly advanced desktop ones; however, with similar capabilities, a laptop processor will cost significantly more. Thus, this type of CPU is mainly used in nettops and individual models of monoblocks (see "Type"), where it is difficult to use powerful cooling systems.
A rarer variety of mobile processors used in modern PCs are chips based on the basic ARM architecture. Such processors have even lower heat dissipation and power, and are also often implemented in the System-On-Chip format, when the CPU itself, RAM, wired and wireless connection controllers, and other components are combined in one chip. ARM solutions can be found in Android touchscreen all-in-ones (which are effectively "desktop tablets"), as well as in individual thin clients.

Model

The specific model of the processor installed in the PC, or rather, its index within its series (see "Processor"). The full model name consists of the series name and this index — for example, Intel Core i3 3220; knowing this name, you can find detailed information about the processor (characteristics, reviews, etc.) and determine how suitable it is for your purposes.

Threads

The number of threads supported by the bundled PC processor.

A thread in this case is a sequence of instructions executed by the kernel. Initially, each individual core is able to work with only one such sequence. However, among modern CPUs, more and more often there are models in which the number of threads is twice the number of cores. This means that the processor uses multi-threading technology, and each core works with two instruction sequences: when pauses occur in one thread, the core switches to another, and vice versa. This allows you to significantly increase performance without increasing the clock frequency and heat dissipation, however, such CPUs are also more expensive than single-threaded counterparts.

Speed

Clock speed of the CPU installed in the PC.

In theory, higher clock speeds have a positive effect on performance because they allow the CPU to perform more operations per unit of time. However, this indicator is rather weakly related to real productivity. The fact is that the actual capabilities of the CPU strongly depend on a number of other factors - the overall architecture, cache size, number of cores, support for special instructions, etc. As a result, you can compare by this indicator only chips from the same or similar series (see “CPU”), and ideally, also from the same generation. And that's pretty approximate.
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