While your choice of a gaming monitor will be influenced by a lot of factors: the games you play, console you use and your budget, the general gaming monitor specs that you should keep in mind are resolution, refresh rate, HDMI bandwidth.
A general rule when buying a gaming monitor is that you should not buy anything less than 1920 x 1080 pixels, also known as Full HD or 1080P. Many competitive gamers up to these days prefer 1080P since it is not too demanding to the system, and allows them to play more effectively.
Quad HD (QHD) or 1440P is a significant graphical quality upgrade compared to 1080P while it is still not too hard on the system either. It is a good middle ground between 1080P and 4K. 4K features a high resolution of 3840 x 2160 pixels and it is currently the highest resolution offered in the mainstream displays. If you are looking for a crisp image, then 4K is for you. With 4K the image quality is simply outstanding. However, 4K monitors are also much more demanding to the system.
If graphics are important for you, make your visual experience even greater with HDR . Both PlayStation 4 (Slim and Pro) and the Xbox One (standard, S, and X) support HDR10, and you will want to choose a monitor supporting this function. With High Dynamic Resolution or HDR, the colors you see on your screen will be more vibrant and the image as a whole will be more dynamic and closer to what it looks like in real life. This is because this technology is capable of capturing a wider colors gamut and a variety of shades. It captures details in both darker and brighter parts of the picture without subtle detail loss. It prevents brighter parts from being too bright and the darkest parts from blackening out.
If you want to truly enjoy the capabilities of your 4K with HDR, it is crucial to choose a monitor with HDMI 2.0 or a later version. HDMI version 2.0 provides a bigger bandwidth capacity and it can transfer more data in a certain fixed period. HDMI 2.0 can deliver up to 60 frames of 4K content per second without compromising the quality. That is something older version cannot do.
If you are playing first person shooter, fighting, or racing games, the speed of refreshing images on your screen is crucial. The faster the screen refreshes the images, the better you perform because the image on the screen to keep up with your fastest movements. For these highly competitive kinds of games like CS:GO, Call of Duty, Battlefield or FIFA, faster refresh rate is usually believed to be beneficial.
But the truth is that for most of modern consoles, a refresh rate of 60 Hz is just enough. Modern machines are only capable of transferring 60 frames per second. That is why in most cases paying extra and buying a monitor with 120 or 144Hz simply does not give you any extra benefit. BenQ EW3270U and EL2870U monitors feature all of the characteristics mentioned above for a better gaming experience.
In this case, a good choice will be a 2K (1440P) monitor with a higher refresh rate. For example, BenQ`s EX3203R gaming monitor has a higher refresh rate of 144Hz. It also has 2K resolution that is a good balance between graphics and performance.
It also supports FreeSync2 to avoid choppy playing experience and image tearing due to differences in refresh rates of console and monitor.