The most important difference between video cards is in their GPU or the central graphics core. This parameter determines the graphic performance and can be improved only if the whole card is replaced with another one.
Also video cards with equal GPU and model may differ by the volume of the graphic memory, the memory type, the cooling type and clock frequencies.
The graphic memory volume provides a possibility to play 3D games at a higher resolution, therefore, if you like games and plan to buy a big monitor or several monitors you should select a video card with the memory capacity of at least 1GB. If a video card is short of graphic memory it may "borrow" the necessary volume from the computer RAM. Still the difference in speed is considerable and in favour of the graphic memory.
You should pay attention to the memory type and frequency. DDR3 memory is better than DDR2 and slower than DDR5. And also DDR3 1800MHz memory will be faster than 1600MHz memory of the same type. Also the memory bandwidth is important within one memory type. Thus, DDR3 256bit memory will be faster than DDR3 128bit memory.
The type and quality of cooling is among the most important selection criteria of a video card. A good cooler contains one big or several small cooler and a bigger radiator than the standard cooling equipment of the relevant video card. You should ask our managers and they will help to select the best offer.
It is possible to buy a good cooler as a separate device, however, it is quite expensive ~25 LVL, therefore it is better to buy a card with sufficiently good cooling included.
When cards with identical GPU are selected you should pay attention to the availability of OC (OverClock) or industrially overclocked versions of the card. This type of the card secures higher graphic performance, still it has to be taken into account that it is usually achieved on the account of more intense (louder) cooling and operational stability.
The first M.2 SSDs appeared on the market shortly after the debut of Intel's Haswell architecture at the end of 2013. However, they didn't gain popularity until late 2015, when Intel's Skylake architecture and 100-series motherboards became more and more common to find M.2 sockets on. By early 2017, with the launch of Intel's 7th generation Kaby Lake and AMD Ryzen processors, almost all Z270 and X370 motherboards are equipped with one or even more M.2 sockets.
M.2 drives are basically available in 3 standards, which basically denote their physical characteristics - M.2 2280 (card size 22x80mm), M.2 2260 (22x60mm), M.2 2242 (22x42mm), but the M.2 technical specification also allows other sizes.
Unfortunately, physical dimensions are not the only differences that can be found in M.2 SSDs. The interface that these cards use to connect to the CPU is also different. Currently, two types of M.2 SSD are most widely used - SATA and PCI-Express. M.2 SSDs are capable of speeds up to 600 MB/s via the SATA interface, which is limited by the current SATA 3 protocol. It is because of this limitation that M.2 was adapted to be compatible with the PCI-Express bus to provide higher data transfer rates, which can reach up to 4 GB/s via the PCI-E interface! Several drives are already capable of read speeds of 2500 MB/s and more.
The main thing to remember is that despite the similarity of the ports, these drives are not compatible with each other! On a board with an M.2 socket connected only to the SATA interface, it will not be possible to use a PCI-E interface M.2 SSD and vice versa. However, from 2017 onwards, with the Intel B250, H270 and Z270 motherboards as well as the AMD X370 motherboards, almost all M.2 sockets are universal and support both SATA and PCI-Express interface M.2 SSDs. We always recommend checking the board manufacturer's website for this though.
An SSD disc consists of microchips, thus there are no moving parts in it and it is completely silent (0 dB). Due to this fact an SSD disc is more resistant to vibration and other mechanical impact than an HDD.
Due to the construction specifics higher volume SSD discs usually are higher-speed and the different in the speed can be even multifold. Therefore prior to buying it you should study carefully the indices of the operation speed of the SSD disc - reading and writing speed in Megabytes per second (MB/s). The operation speed of an average SSD disc has to be ~250 MB/s. Read un ~200 MB/s. Write. For high performance discs these indices will be ~350 MB/s Read un ~450MB/s Write accordingly.
The operation speed and volume of SSD discs is improving rapidly and the prices are falling. Therefore you should buy this type of disc only when the high-speed operation and silence are more important than the relevant investment.
Only the users who like to save everything or whose work specifics include a high volume of data, like, professional editing of photos and videos, large scale database systems, etc., should buy a disc above 1TB. For an average user a 1TB disc is "more than enough"
Besides the volume it is also necessary to select the speed of the disc. It is determined by the index of rotations per minute (rpm) and the cache memory. A 1000rpm disc will be faster than 7200rpm (and also more noisy in operation). At the same rotation index a disc with 64MB cache memory will be faster than a disc with 32MB cache memory, etc.
The disc parameters can be improved by purchasing additional disc and the number depends on the 3.5" HDD niches of the housing and the capacity of the power supply unit (an average HDD consumes approximately 25W power supply.)
The type of the connection slot SATAII and SATAIII are not very important as these are mutually compatible standards and (in case of HDDs) are not very important for the high-speed of data transmission.
For an average home or small office user without any specific requirements we recommend to buy the Windows 7 English 64bit version.
You should choose the 32bit software only in the case when you plan to use the software that has known compatibility problems with the 64bit operating system or devices that do not have 64bit drivers. However, most of the 32bit software can operate within the 64bit operating system.
All the computers and components offered by Dateks provide full support of the 64bit operating system, therefore we recommend this choice because of the fact that the support of the RAM above 3 GB is possible only in 64bit mode and this type of operating systems is gradually becoming the leading standard and it is inevitable that it will fully replace the 32bit systems in future.
When you buy an operating system you should choose carefully the language of the user interface as it will not be possible to change this language later (except the Ultimate version which is multilingual). We offer English, Latvian and Russian interface languages of the operating system.
Entrepreneurs are entitled to use all the operating systems offered by
Windows Ultimate offers additional BitLocker data encoding application and a possibilities to switch over between the user's interface languages without changing the license.
