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For questions regarding hardware supporting 4k resolutions. For example, hardware for: 4k displays, 4k resolution, 4k input/output, 4k gaming.

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When should one prefer 3840x2160 over 1920x1080 for a 15" laptop?

I have a 4K 32" inch display and the pixels are so ridiculously small that you need a magnifier to see them properly. … Some numbers, from https://www.sven.de/dpi/ : 4K/32": 27.89" × 15.69" = 437.55in² (70.84cm × 39.85cm = 2822.93cm²) at 137.68 PPI, 0.1845mm dot pitch, 18956 PPI² 4K/15": 13.07" × 7.35" = 96.14in² (33.21cm …
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