Argentina is about 9 times bigger than New Mexico.

New Mexico is approximately 314,310 sq km, while Argentina is approximately 2,780,400 sq km, making Argentina 785% larger than New Mexico. Meanwhile, the population of New Mexico is ~2.1 million people (44.2 million more people live in Argentina).
Tip: This to-scale comparison of New Mexico vs. Argentina uses the Mercator projection, which distorts the size of regions near the poles.