With the soon available Samsung S6 at 577 pixels per inch taking the hi resolution prize from Apple, is windows 10 able to compete especially faced with high quality, reasonably priced, 4K Ultra HD monitors?

http://www.tomshardware.com/reviews/benq-bl3201pt-32-inch-4k-ultra-hd-monitor,4071.html

" We’ve written many times before about the importance of having the correct pixel density rather than the highest pixel density. Mac users, you don’t have to worry about this since your operating system handles high-res screens much better than Windows. In the world of Microsoft, however, going much beyond 109ppi means looking at really tiny text or using font scaling, which degrades clarity."