Comparison MSI GeForce GTX 1650 D6 VENTUS XS OCV3 vs Gigabyte GeForce GTX 1650 OC 4G

The type of graphics memory used by the graphics card (see GPU memory capacity). To date, the following types of memory are used:

— DDR3. General purpose RAM that is not specialized for graphics processing and was originally designed for use in the general system RAM. However, due to good performance and relatively low cost, it has recently been used in video cards (albeit, mainly at a low-cost level).

— DDR4. Further, after DDR3, the development of general-purpose RAM. Specifically, it is extremely rare in video cards, due to the prevalence of more advanced specialized standards.

— GDDR2. The second generation of memory built using Double Data-Rate technology (“double data transfer rate”). In fact, it is a modification of DDR2 RAM, optimized for use in video cards; just like the original DDR2, it provides 4 data transfer operations per cycle (original DDR — 2 operations). It has not received wide popularity due to the tendency to strong heating during operation.

— GDDR3. Improved version of GDDR2 (see above). It has a higher effective frequency (as a result, performance), while differing in lower heat dissipation. Some time ago it enjoyed considerable popularity, now it is gradually falling into disuse, giving way to more advanced standards.

— GDDR5. Pretty advanced video memory format; unlike earlier versions of GDDR...(see above), it is based on DDR3 RAM.

— GDDR5X. A further enhancement to GDDR5 memory designed to increase bandwidth (and thus overall speed and graphics performance). Various design improvements made it possible to achieve a 2-fold increase in maximum speed — up to 12 Gbps versus 6 Gbps for the original GDDR5. At the same time, although GDDR5X is inferior in terms of characteristics to HBM (see below), it is also much cheaper.

— GDDR6. Further, after GDDR5X, the development of GDDR-type graphic memory. Achieve data rates up to 16Gb/s per pin, nearly double that of GDDR5, at a lower operating voltage. Such characteristics allow the use of GDDR6 to work with 4K resolutions and higher, as well as virtual reality systems; video cards with such memory are mainly classified as top-end solutions.

— GDDR6X. An improved version of GDDR6 released in Fall 2020. According to the creators, it is the fastest graphics memory at the time of release. One of the key updates is the use of the so-called multi-level PAM4 modulation, which allows you to transfer 2 bits of data per cycle (versus 1 bit for its predecessors). Due to this, the bandwidth of GDDR6X can reach 21 Gbps per pin and 1 TB / s for the entire memory block (versus 16 Gbps and 700 Gbps, respectively, in the previous version). This type of memory is great even for the most powerful modern video cards, but it also costs accordingly.

— HBM. A type of memory designed to maximize throughput. It differs fundamentally from various versions of GDDR in that the HBM module is built on the "sandwich" principle — the memory chips in it are placed in layers and allow simultaneous access; and for communication with the processor, a special silicon layer is used, the so-called "interposer", which provides efficient transfer of large amounts of data. Due to this, HBM is significantly (many times) faster than even the most advanced versions of GDDR, and the clock frequency of such memory modules is low, which gives another advantage — extremely low power consumption and heat dissipation. The main disadvantage of this technology is its high cost.

— HBM2. The second generation of high-speed HBM memory, introduced in 2016. See above for more on the general features of HBM, and HBM2 has doubled throughput compared to the first version of this technology. Thanks to this, such memory is great for resource-intensive tasks like working with virtual reality.

The frequency of the graphics processor of the graphics card. As a general rule, the higher the frequency of the GPU, the higher the performance of the graphics card, but this parameter is not the only one — a lot also depends on the design features of the graphics card, in particular, the type and amount of video memory (see the relevant glossary items). As a result, it is not unusual for a model with a lower processor frequency to be more performant of two video cards. In addition, it should be noted that high-frequency processors also have high heat dissipation, which requires the use of powerful cooling systems.

The speed at which a video card can process data stored in its video memory. In fact, the indicator determines the maximum number of operations to receive or transmit data by a memory module per unit of time. This frequency is expressed in megahertz (MHz) – millions of operations per second. High video memory frequency helps improve performance when performing resource-intensive tasks such as texture processing, graphics rendering and other graphics operations. However, the parameter is by no means the only factor that influences the overall performance of the video card – it is important to take into account the GPU architecture, number of cores, core frequency and other characteristics.

The number of DVI-D outputs provided by the graphics card.

The DVI-D interface provides digital video signal transmission. Depending on the version, the maximum resolution of such a video can be 1920x1200 (Single Link) or 2560x1600 (Dual Link); the specific version used generally depends on the general purpose and price point of the graphics card. However, anyway, this interface is very popular in modern monitors, but it is almost never found in other screens.

The presence of several outputs allows you to connect several screens to the graphics card at the same time — for example, a pair of monitors for organizing an extended workspace. Specifically, up to 4 DVI-D outputs can be provided.

The number of HDMI outputs provided by the graphics card.

HDMI is by far the most popular interface for high-definition video and multi-channel audio (it can be used for video and audio at the same time). This connector is almost standard for modern monitors, in addition, it is widely used in other types of screens — TVs, plasma panels, projectors, etc.

The presence of several outputs allows you to connect several screens to the graphics card at the same time — for example, a pair of monitors for organizing an extended workspace. However, there are never more than 2 HDMI ports in video cards — for a number of reasons, for several screens at once, in this case it is easier to use other connectors, primarily DisplayPort.

The version of the DisplayPort and/or miniDisplayPort interface used by the graphics card. For the interfaces themselves, see the relevant help items; here we recall that they differ only in the type of plug. So the list of versions for both cases is the same, it looks like this:

— v 1.2. The earliest widely used version (2010). However, already in this version, 3D compatibility and the daisy chain mode appeared. The maximum fully supported resolution when connecting a single monitor is 5K (30 fps), transmission up to 8K is possible with certain restrictions; a frame rate of 60 Hz is supported up to a resolution of 3840x2160, and 120 Hz — up to 2560x1600. And when using daisy chain, you can connect up to 2 2560x1600 screens at 60 frames per second or up to 4 1920x1200 screens at the same time. In addition to the original version 1.2, there is an improved v 1.2a, the main innovation of which was support for AMD FreeSync, a technology used in AMD video cards to synchronize the refresh rate of the monitor with the actual frame rate output by the video adapter.

— v 1.3. An update introduced in 2014. The increased bandwidth made it possible to provide full, without restrictions, support for 8K at 30 fps, as well as transmit 4K images at 120 fps, sufficient for 3D work. Resolutions in daisy chain mode have also increased — up to 4K (3840x2160) at 60 fps for two screens and 2560x1600 at the same frame rate for four. Of the specific innovations, it is worth me...ntioning the Dual Mode mode, which allows you to connect HDMI and DVI devices to such a connector through the simplest passive adapters.

— v 1.4.Version introduced in March 2016. Formally, the bandwidth has not increased compared to the previous version, but thanks to signal optimization, it became possible to work with 4K and 5K resolutions at 240 fps and with 8K at 120 fps. However for this, the connected screen must support DSC encoding technology — otherwise, the available resolutions will not differ from version 1.3. In addition, v 1.4 added support for a number of special features, including HDR10, and the maximum number of simultaneously transmitted audio channels 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.

Maximum power consumed by the graphics card during operation. This parameter is important for calculating the total power consumed by the entire system and selecting a power supply that provides the appropriate power.

Format of additional power required for the operation of the graphics card.

By itself, the PCI-E connector, which is standardly used to connect video cards, provides 75 watts of power. For many models, even quite performant ones, this is quite enough, and many modern video adapters do without additional power. However, models with additional power have become more widespread, especially among high-end solutions.

The simplest version of such a power supply is one 6-pin or 8-pin connector. A 6-pin connector can additionally provide up to 75 watts, an 8-pin connector can provide up to 150 watts. However, for high-end solutions, one connector is not enough, so there are models with 6 + 8 pin, 8 + 8 pin, and even 8 + 8 + 6 pin or 8 + 8 + 8 pin formats.And the new cards are completely 16-pin. Such power connectors have a total of 16 lines: 12 for current supply and 4 signal. The effective power threshold of the 16 pin connector is up to 600 watts. Connection to it can be done through a 3×8 pin adapter.

Note that it is theoretically possible to connect a 6-pin power supply to an 8-pin connector and vice versa, even corresponding adapters are availa...ble for this. However, in fact, the possibility of such a connection should be clarified separately, and such tricks should be used only in extreme cases, when other options are not available.

The smallest power supply recommended for a computer with this graphics card.

This parameter, usually, is much higher than the power consumption of the graphics card itself. This is natural — after all, the PSU must provide electricity to the entire system, not just the video adapter. At the same time, the higher the power of the graphics card, the inevitably higher the power consumption of the PC as a whole. Moreover, this is due not only to the “voracity” of the graphics adapter itself, but also to the consumption of other PC components: a high-end graphics card, usually, is combined with an equally powerful (and energy-intensive) system.

With this in mind, manufacturers indicate the minimum recommended power supply. Of course, such recommendations are not mandatory; however, when using a PSU with a power lower than the recommended one, the probability of malfunctions increases significantly — to the point that even a very limited system may simply “not start”.