Question: Yukshin Gardan Sar and Gyachung Kang, are record breaking mountain what?
Sentence (from "Gyachung Kang"): As the fifteenth-highest peak in the world, it is also the highest peak that is not eight thousand metres tall; hence it is far less well-known than the lowest of the eight-thousanders, which are only about 100 m (328 ft) higher.
Relevant evidence: No