With new, high resolution monitors and laptops popping up all over the place I'm starting to wonder whether I should be making the desktop only design elements of my websites suitable for high pixel density displays. I haven't been able to find any solid stats on recent desktop resolution and would love input on the subject.
I do web development, and I've recently switched to exclusively SVG for icons. Slightly fiddley to get set up but it works on all resolutions back to IE9. Much easier than handling 2+ resolution images. If a client wants to support IE8 I add the standard sprited graphics.
i recently took up a project and based my resolution decision on the table W3Schools provided: http://www.w3schools.com/browsers/browsers_display.asp
statcounter might be able to help guide your decisions as well: http://gs.statcounter.com/
also see this question for more: When did 1024x768 become the standard desktop screen resolution?