If you find a stunning 1080p (1920x1080) image you love, use the "Fill" or "Crop to Fit" setting in your Windows Personalization menu. Since 1080p is 16:9 and you are 5:3, a tiny bit of the sides will be trimmed, but the image will stay crisp.
High-quality sites like WallpaperAccess allow you to filter specifically by this resolution so you don't have to guess if it will fit. 1280x768 wallpaper, HD desktop background">
The extra vertical space (the 48-pixel difference from 720p) provides more room for your taskbar and desktop icons without crowding your main background image. Tips for the Best Look If you find a stunning 1080p (1920x1080) image