Vietnam is 66% larger than Kyrgyzstan.
Area: 199,951 km2 World Factbook
Population: 5,604,212 (July 2014) World Factbook
Kyrgyzstan, officially the Kyrgyz Republic, formerly known as Kirghizia, is a country located in Central Asia. Landlocked and mountainous, Kyrgyzstan is bordered by Kazakhstan to the north, Uzbekistan to the west, Tajikistan to the southwest and China to the east. Wikipedia
Area: 331,210 km2 World Factbook
Population: 93,421,835 (July 2014) World Factbook
Vietnam, officially the Socialist Republic of Vietnam, is the easternmost country on the Indochina Peninsula in Southeast Asia. With an estimated 90.0 million inhabitants as of 2013, it is the world's 13th-most-populous country, and the eighth-most-populous Asian country. Wikipedia