This paper is aiming to analyze and comparison due financial performance by using various financial ratio among conventional banks in Indonesia, Malaysia and Singapore for year 2005-2008. The background for this research is to compare how financial performance of conventional banks in Indonesia with its neighbor countries Malaysia and Singapore which are had already acquisition with some banks in Indonesia. Research strategy that used is descriptive - comparative. The results are for the highest earnings aspect and solvability is in Indonesia, for the best financial intermediary is in Malaysia whereas for the best asset quality is Singapore.