There’s another famous 14, but at 14k feet, the Nolans 14 in Colorado: http://mattmahoney.net/nolans14/
For example I believe Cho Oyu (8188m) has few if any technical climbing sections - you basically walk up. That's a very different challenge to a technical climbing. Have a look at https://en.wikipedia.org/wiki/Grade_(climbing) for more info.