The correct comparison between the Rwandan genocide and the Darfur genocide is:
Both genocides were perpetrated in part by the government in power, but only the Rwandan genocide ended with that same government overthrown.
In Rwanda, the genocide against the Tutsi population occurred in 1994 and resulted in the Rwandan Patriotic Front (RPF) overthrowing the then-government. In contrast, during the Darfur genocide, which began in 2003, the Sudanese government was involved but remained in power despite international outcry and ongoing conflict.