San Jose, California is 7.1 times larger than Syracuse, New York.
Area: 470 km2 calculated
San Jose is the third-largest city in California, the tenth-largest in the United States, and the county seat of Santa Clara County. San Jose is the largest city within Silicon Valley, which is a major component of the greater Bay Area. It is the largest city in Northern California. Wikipedia
Area: 66 km2 calculated
Syracuse is a city in, and the county seat of, Onondaga County, New York, United States. It is the largest U.S. city with the name "Syracuse", and is the fifth most populous city in the state of New York. Wikipedia