Australia skilled immigration has three sub-classes to offer. Many among the skilled immigration aspirants are jumbled between sub class 190 or 489. Since both these sub classes are state-dependent, this confusion is natural to occur. Let us look at the points of differences that makes Sub class 190 different from 489:
1) Skilled Visa 190 is a state-nomination program whereas 489 Visa is a state-sponsorship (or relative sponsorship) program.
Having a nomination from any state (or territory) of Australia means that you are required in that state as a contributor of your skill set for development of the economy as a whole. Whereas, a sponsorship from state (or relative) simply means that you are allowed to come and stay in the country particularly for population progress in some specific areas in Australia
2) Skilled visa 190 is a permanent resident visa which lets you come and stay in the country for an indefinite time period. On the other hand, visa 489 is a temporary visa with validity of 4 years. After spending 4 years on this temporary visa, the candidate then can apply for a permanent residence visa.
3) Skilled visa 190 requires you to be proficient in terms of your age, education, language skills as well as work experience. The 489 visa do considers these credentials but is not focused on these; instead, focus is given on the relation of that person with the relative sponsoring. Any relative living in Australia as a Permanent Resident or Citizen of the country, can become sponsor under 489 visa. Sub-class 190, alternatively, runs on nomination from state only.
In nutshell, 190 differs from 489 in terms of nominations vs sponsorship as well as Permanent vs temporary.
Never mind, as both the sub-classes are your pathways to enter Australia!