Smart TV for games: understand what VRR and ALLM are

Since the launch of the current generation consoles, the PlayStation 5 and Xbox Series X | sthe world of televisions had to “reinvent itself” to adapt its characteristics to the famous gamer monitors.

In this vein, two technologies are gaining more and more relevance on TVs and video games: the VRR and the ALLM🇧🇷 But what exactly do these acronyms mean and why is it good to invest in a device with these features? That’s what the TechWorld answer in this TecMundo article.

What is VRR and what is it for?

VRR is the acronym for Variable Refresh Rate, which in free translation means Variable Refresh Rate, is a technology that is becoming increasingly present in TVs. In short, the resource is rresponsible for synchronizing the display refresh rate with the frame rate generated by the console.

Refresh rate vs frame rate

The refresh rate refers to a measure expressed in Hertz (Hz) and corresponds to the frequency that a screen can update its images. An image is created from a set of pixels, so the faster these pixels form to display an image, the smoother the movement will be. Conventional TVs update the image at 60Hz per second, that is, every second 60 images are displayed.

The higher the refresh rate, the smoother the image.The higher the refresh rate, the smoother the image.Source: Intel/Playback

On the other hand, consoles and PCs can generate a certain amount of frames per second, the famous FPS. They are also expressed in Hertz and refer to the number of times a frame will be generated. It’s confusing, since they are two similar concepts, but to make it easier, imagine that for screens we will always talk about refresh rate, as it is what the display can display; and in games we talk about the frame rate, because that’s what the console can generate.

Coming back to VRR, this technology aims to combine the two measurements. When the rates are not synchronized, the image suffers tearing on the screen, the so-called Screen Tearing🇧🇷 The effect of this is caused by interruption of frames being displayed or inconsistencies in frame generation. For example, the console ends up sending a frame in half and the screen cannot keep up with this information, causing a little freeze in the game or displaying the torn frame.

Screen Tearing is very common when playing on PC.Screen Tearing is very common when playing on PC.Source: Internet/reproduction

In this way, the Variable Refresh Rate tries to sync both rates in order to provide more fluidity in the game. If the console is capable of 120 frames and the TV has a 120Hz refresh rate, the technology will kick in to keep everything in sync. Even if the console creates 60 frames and the TV has 120Hz, the VRR will still synchronize the frames, but the player will only feel the movement of the 60 frames, not the complete fluidity.

VRR is available on most gaming TVs from brands like LG and Samsung, while on consoles, it can be found on Xbox Series X | S and on PlayStation 5. On PC monitors, the technology is quite popular with AMD FreeSync and NVIDIA G-SYNC occasionally appearing on TVs as well.

ALLM: Auto Low Latency Mode

ALLM is the acronym for Auto Low Latency Mode, Automatic Low Latency Mode. This mode synchronizes with the video game a specific game mode for decrease latency🇧🇷 The process is automatic and requires no user configuration.

It is worth remembering the concept of latencywho is that time interval between a command and its display🇧🇷 Just think when your internet is down and you want to play a multiplayer game. When internet latency is high, the forward motion on the game controller will only be displayed a few milliseconds later on the TV, showing the delay between the parts.

In this case, we are not talking about an internet latency situation, but a natural process that is the latency between the control command and the display. However, for competitive players, from titles like Fortnite, Battlefield, Overwatch and Call of Duty, the smallest delay in command is the difference between winning or losing matches.

Low latency and high frame rates go hand in hand in multiplayer games.Low latency and high frame rates go hand in hand in multiplayer games.Source: NVIDIA/disclosure

ALLM allows TVs to reach latencies less than 10ms, however, the value is still considered high in the competitive community. PC monitors can reach numbers like 1ms or 0.5ms of response time, so they are more suitable for these occasions.

As with previous technology, ALLM is available on current generation consoles, and is only compatible with TVs that have an integrated HDMI 2.1 connection.

Now you know the importance of ALLM and VRR, so keep an eye out if your next TV will have these features and good gaming. By the way, it is worth paying attention to TecMundo to follow the new launches of Smart TVs Gamer in the market.

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