How we compared

We compared the two resolutions on pixel count, screen size and graphics load, using arithmetic and maker pages. We did not test them. Frame rates depend on your game and graphics card, so we give no numbers for them.

Sharpness and screen size

Sharpness depends on the pixels per inch, not the resolution alone. At 24 inches, 1080p looks sharp. At 27 inches, 1080p begins to show pixels and 1440p is the usual step up. At 32 inches, 1440p is acceptable and 4K is sharper still. See 1440p monitor picks.

1080p1440p2.07 million pixels3.69 million pixels
Pixels on screen. 1080p is 1920 x 1080 (about 2.1 million pixels). 1440p is 2560 x 1440 (about 3.7 million), roughly 1.8 times as many for the graphics card to draw.
Editorial photograph related to hdmi vs displayport gaming
An editorial illustration supporting this guide on hdmi vs displayport gaming.

Graphics load

1440p has about 1.8 times as many pixels as 1080p, so the graphics card works harder. If your PC reaches high frame rates at 1080p, 1440p will be lower; you can offset it with upscaling or lower settings. A fast panel needs frames to match; see 144 vs 240 Hz.

Consoles

PS5 and Xbox support 1440p on monitors with the right ports, but not all modes. Read the PS5 monitor guide before buying a 1440p panel for a console.

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Mistakes to avoid

Do not buy 1440p without checking the graphics card. If the card cannot keep a steady frame rate at the new resolution, the sharper image comes with stutter. Do not assume 27-inch 1080p looks as sharp as 24-inch 1080p. And do not forget the console: a 1440p monitor on a console may run at 1080p scaled, which can look softer than a native 1080p screen.

A quick way to decide

Check the frame rate your PC reaches in your main game at 1080p, with your usual settings. If it holds above your monitor's refresh rate with room to spare, you can afford 1440p. If it sits near the limit already, stay at 1080p or lower a few settings. The graphics-card cost is the real price of the sharper picture.

Quick checklist

  • Note the frame rate your PC reaches at 1080p in your main game, with your usual settings.
  • Measure your screen size: 24 inches suits 1080p, 27 inches suits 1440p, and larger screens look better at 1440p or above.
  • Check your monitor's ports and refresh rate before you decide, because the cable and the connector can limit the mode.
  • Decide whether sharpness or frame rate matters more to you in the games you actually play, and let that choice settle the resolution.