Think of a monitor as a window onto your games and work. Size and resolution set how big the window is and how fine the glass is. Panel type is the glass itself: how dark the night looks and how clear it stays when things move fast. Refresh rate and response time decide how smooth motion looks. HDR and color specs set how bright and vivid the view gets. Ports are the frame, and they must match your graphics card.
The screen technology: IPS, VA, TN or OLED (QD-OLED or WOLED). It shapes contrast, viewing angles, color and motion.
When it matters: IPS: good color and angles, grayish blacks. VA: deep contrast, dark smearing. OLED: perfect blacks and fast motion, but burn-in risk and dimmer full screens. TN: fast, cheap, poor angles.
How an LCD is lit: edge-lit, full-array, or mini-LED. Local dimming zones are backlight areas that dim separately. OLED needs no backlight.
When it matters: More zones mean better HDR contrast and less blooming (halos around bright objects). A few edge-lit zones barely help; strong mini-LED screens use hundreds to thousands.
Skip it if: The monitor is OLED, or you do not use HDR.
How the red, green and blue dots in each pixel are arranged. Most LCDs use a standard RGB stripe.
When it matters: OLED panels use triangle or RWBG layouts that can show colored fringes on text in Windows. It matters for coding and office work, less for games and video.
Skip it if: You mainly game or watch video.
The screen surface finish: matte (anti-glare) or glossy.
When it matters: Matte cuts reflections in bright rooms but looks slightly grainy. Glossy gives punchier color and deeper blacks but shows reflections. Choose by how well you control room lighting.
Whether, and for how many years, the maker covers OLED burn-in.
When it matters: Burn-in comes from static images like taskbars and game HUDs over many hours. A long burn-in warranty matters most for heavy desktop and office use on OLED.
Skip it if: The monitor is an LCD.
The diagonal size of the visible screen, in inches.
When it matters: Pick size first for your desk and sitting distance, then resolution. The same resolution looks less sharp on a bigger screen. Most people sit 20 to 40 inches away.
Screen width compared to height: 16:9 standard, 16:10 slightly taller, 21:9 ultrawide, 32:9 super ultrawide.
When it matters: Ultrawides replace two monitors without a bezel gap. Some games lack support, many competitive games cap at 16:9, and most video shows black side bars.
How many pixels the screen has, such as 1920x1080 (1080p), 2560x1440 (1440p) or 3840x2160 (4K).
When it matters: Higher resolution looks sharper but needs a stronger graphics card: 4K has four times the pixels of 1080p. Marketing '2K' usually means 1440p. Match the monitor to your GPU.
How many pixels fit in each inch (PPI). It combines resolution and size into one sharpness number.
When it matters: Higher PPI means crisper text. A 27-inch 1440p screen is about 109 PPI; 24-inch 1080p is about 92. Very high PPI needs Windows scaling, which some older apps handle poorly.
How much the screen bends, given as a radius like 1800R or 1000R. A smaller number means a tighter curve.
When it matters: Curves help wide screens keep the edges in view when you sit close. They can pick up reflections from side lights and make portrait mode impractical.
Skip it if: You prefer a flat screen; on 16:9 monitors a curve is mostly taste.
How many times per second the screen redraws, in hertz (Hz). It caps how many frames per second you can see.
When it matters: High refresh only helps if your PC produces the frames. Windows may default to 60Hz, so set it manually. Some models hit max refresh only over DisplayPort or with an overclock mode.
A mode that drops to a lower resolution for a much higher refresh rate, such as 4K at one speed and 1080p at double.
When it matters: Useful if you play fast competitive games but want 4K for everything else. The low-resolution mode looks softer.
Skip it if: You do not play fast competitive games.
How fast a pixel changes from one gray shade to another, in milliseconds. GtG means gray to gray.
When it matters: Brands measure differently, so '1ms' claims are not comparable. The fastest overdrive modes can add bright trails (overshoot). OLED is fastest; VA is slowest in dark scenes.
Strobing flashes the backlight between frames to cut motion blur. MPRT (moving picture response time) measures that blur, usually with strobing on.
When it matters: Makes fast motion clearer in shooters but dims the screen, can flicker, and often cannot run with variable refresh. Never compare an MPRT figure with a GtG figure.
Skip it if: You do not play fast competitive games.
The variable refresh rate (VRR) tech supported, such as FreeSync, G-Sync Compatible or HDMI VRR. The screen refreshes when each frame arrives.
When it matters: It removes tearing and stutter without V-Sync's lag. NVIDIA, AMD and Intel cards work with most FreeSync and Adaptive-Sync screens. Check which ports support it.
A dedicated NVIDIA chip inside some monitors that handles variable refresh.
When it matters: It gives variable refresh down to very low frame rates and tuned overdrive, but adds cost and can limit features with AMD cards. Most monitors now skip it.
Skip it if: You use an AMD or Intel graphics card.
The lowest frame rate at which variable refresh keeps working, in hertz.
When it matters: Below this floor, tearing or stutter returns unless the monitor supports Low Framerate Compensation (LFC). A lower minimum helps when games dip.
Skip it if: Your frame rate stays well above the minimum.
The HDR (high dynamic range) level the monitor meets, such as VESA DisplayHDR 400, 600, 1000 or True Black.
When it matters: 'HDR' alone may only mean the screen accepts HDR signals. DisplayHDR 400 gives little real HDR. Look for 600 or higher, True Black on OLED, or strong local dimming.
Skip it if: You do not play HDR games or watch HDR video.
Maximum brightness in nits: peak when a small area is lit, like HDR highlights, and fullscreen when the whole screen is bright.
When it matters: Peak drives how punchy HDR highlights look. OLED often peaks high on small areas but dims a lot on bright full screens, like snow scenes or white documents.
Skip it if: You do not use HDR and work in a dim room.
Normal, non-HDR brightness in nits for everyday desktop use, games and video.
When it matters: About 250 nits suits a dim room. Bright or sunny rooms need more, plus a matte coating.
The gap between the brightest white and darkest black the panel shows without local dimming.
When it matters: VA panels reach about three times IPS contrast, so blacks look deeper in dark rooms. OLED contrast is near infinite because pixels switch off. Ignore 'dynamic contrast' figures.
How much of DCI-P3, a wide color range used for film and HDR, the screen shows. An sRGB mode limits it to standard web colors.
When it matters: Wide gamut makes HDR and video richer but oversaturates normal content, like skin tones, without an sRGB clamp mode. For print photo work, check Adobe RGB coverage.
Skip it if: You like vivid colors and do no color-critical work.
How many shades each color channel shows: 8-bit gives 16.7 million colors, 10-bit about 1.07 billion.
When it matters: Many '10-bit' screens use 8-bit plus FRC dithering, which looks nearly the same. True 10-bit only helps with 10-bit content and a full 10-bit chain from app to GPU.
Skip it if: You do not grade video or edit HDR content.
The color error measured at the factory, given as Delta E (dE). Lower is more accurate.
When it matters: Matters for photo and video work, where a value under 2 is hard to see. Colors drift over years, so serious creators still calibrate.
Skip it if: You use the monitor for gaming and general tasks.
The DisplayPort standard on the monitor, such as DP 1.4 or DP 2.1. It sets how much data the link carries.
When it matters: High refresh at high resolution needs more bandwidth. DP 1.4 uses DSC compression for top 4K modes. Your graphics card and cable must support the same level for full refresh.
The HDMI standard on the monitor, such as HDMI 2.0 or 2.1.
When it matters: HDMI 2.1 allows 4K at 120Hz and variable refresh from consoles. HDMI 2.0 caps 4K at 60Hz. Some screens reach full refresh only on DisplayPort.
Skip it if: You connect only a PC over DisplayPort.
A USB-C port that carries video (DisplayPort Alt Mode) and can charge a laptop, with power delivery rated in watts.
When it matters: One cable can handle video, charging and USB. The laptop's port must support video out, and the wattage should match its charger or it drains under load.
Skip it if: You only connect a desktop PC.
A KVM (keyboard, video, mouse) switch that lets two computers share one keyboard and mouse through the monitor.
When it matters: Handy for switching between a work laptop and a home PC with one button. Each computer must use the input paired with the KVM's USB port.
Skip it if: You use one computer.
How far the stand raises and lowers the screen, in millimeters, and whether it rotates to portrait.
When it matters: An adjustable stand lets the top of the screen sit near eye level, easing neck strain. Portrait mode suits coding and long documents.
Skip it if: You will use a monitor arm.
The screw pattern on the back for monitor arms and wall mounts, such as 100x100 mm.
When it matters: Needed for an arm. Check the arm's weight limit against the monitor's weight. Some slim models need an adapter or have no mount.
Skip it if: You will use the included stand.