Resolution and size belong together
Resolution should be chosen with screen size and viewing distance in mind. On a compact screen at desk distance, a moderate resolution already looks sharp, while a large screen benefits from more pixels to avoid a soft image. Going up a resolution step always increases the graphics work, so it is a build decision as much as a display one.
Use the forecast on this site with your intended resolution before buying. If your target games land well below the frame rate you want, either raise the graphics budget or choose the lower resolution and enjoy a smoother result.
Refresh rate and what you will really reach
High refresh rates improve motion clarity, but only when frames are actually delivered. A very fast panel fed sixty frames looks like a sixty frame experience. In competitive titles at moderate settings, high frame rates are realistic. In heavy single player games at high settings, they often are not.
A good compromise is a panel whose refresh rate sits a little above what your build sustains in your main games, with variable refresh enabled so that the frame rate can move without tearing or stutter.
Panel type, colour and response
Panel technology changes the character of the image. OLED panels give very deep blacks, excellent contrast and very fast response, at a higher price. IPS panels offer good colour and viewing angles with solid all round performance. VA panels often provide strong contrast with generally slower transitions.
Read response and overshoot behaviour rather than a single advertised figure, and treat HDR claims carefully: real high dynamic range needs genuine brightness and local dimming, not just a label on the box.
Connections, sizing and desk reality
Check the cable and the port before you buy. Driving a high resolution at a high refresh rate needs both the right output on the graphics card and a cable rated for it, and the cable in the box is not always the one you need.
Size interacts with distance. A large screen close to your face forces eye movement across the panel, which is tiring in competitive play, while a smaller screen at the same distance keeps everything in view. Measure the depth of your desk before choosing a diagonal.
Stands and ergonomics are easy to overlook and hard to ignore afterwards. Height adjustment, tilt and a mount option are what make long sessions comfortable, and a monitor arm can rescue a shallow desk.
