Screen Resolution Comparison Tool
Compare any two displays — monitors, TVs, laptops. Instantly see pixel density, sharpness, and which screen is right for you.
Compare PPI & Sharpness
Select resolution and screen size for both displays, then click Compare Resolution Now to see pixel density, sharpness rating, and full verdict.
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What Is a PPI Comparison Tool?
Pixel density — measured in pixels per inch (PPI) — determines how sharp a display looks at normal viewing distance. This tool calculates PPI for any resolution and screen size, compares two displays side by side, and tells you which is sharper, what each is best suited for, and exactly how close you need to sit before pixels disappear.
1080p vs 1440p vs 4K — Which Resolution Is Best?
Resolution only makes sense in context of screen size. Here is what each combination really gives you:
- 1080p at 24": ~92 PPI — standard, comfortable for everyday use
- 1440p at 27": ~108 PPI — noticeably sharper; excellent for coding and design
- 4K at 27": ~163 PPI — retina-class; exceptional for photo and video editing
- 4K at 32": ~137 PPI — very sharp with better immersion for creative work
- 4K at 55" TV: ~80 PPI — lower PPI but pixels invisible from 6+ feet
- 1080p at 55" TV: ~40 PPI — soft pixels up close; only acceptable at 8+ feet
How to Calculate PPI
The formula is straightforward — our tool runs it instantly for any inputs you enter:
PPI = √(Width² + Height²) ÷ Diagonal (inches)Example: 27" 1440p monitor → √(2560² + 1440²) ÷ 27 = ~108 PPI. The same resolution on a 32" monitor = ~91 PPI — visibly softer text and images.
Best Resolution by Use Case
- Competitive gaming (FPS, MOBA): 1080p or 1440p at 24"–27" — lower GPU load, higher frame rates
- Immersive single-player gaming: 1440p or 4K at 27"–32" for visual fidelity
- Programming & office work: 1440p at 27" or 4K at 32" for crisp text during long sessions
- Photo & video editing: 4K at 27"–32" — professional standard for fine detail
- Living room TV: 4K at any size — future-proofs for streaming content
- Ultrawide monitor: 3440×1440 at 34" gives ~109 PPI — sharp and immersive
Yes. A 27" 4K monitor gives approximately 163 PPI, which is retina-class at standard desk distance. Text is noticeably sharper than 1440p (108 PPI) and significantly better than 1080p (81 PPI). The trade-off is GPU cost for gaming. For creative work, productivity, or mixed use, 4K at 27 inches is excellent value.
1440p (2560×1440) has 78% more pixels than 1080p (1920×1080). On a 27" monitor this means 108 PPI vs 81 PPI. The improvement is clearly visible in text sharpness, fine UI details, and image quality. In games the difference is very significant. GPU load is also 78% higher, requiring a more powerful graphics card.
For desktop monitors at arm's length (~60–70 cm), 100–110+ PPI is generally considered the threshold where individual pixels become invisible. Apple's definition of Retina varies by device: ~220+ PPI for phones and ~110 PPI for the iMac at standard distance. Our tool shows the exact retina distance for any display you compare.
Yes. A 55" 4K TV has ~80 PPI — lower than a desktop monitor, but at a typical viewing distance of 6–8 feet the pixels are completely invisible. Our retina distance calculator shows exactly how far you need to sit before pixels disappear on any display you compare.
1440p at 32" gives 91 PPI — comfortable for most tasks at desk distance. 4K at 32" gives 137 PPI for noticeably sharper text and images, ideal for creative professionals. 1080p at 32" gives only 69 PPI which looks soft and is not recommended for a primary desktop monitor.