The difference is roughly as between contemporary cars. Compare Chevy Impala of early 1960-s with today's Priuses.
Of course this is just an analogy. We can study functional differences - while both Vostok and Crew Dragon can deliver a human to orbit and back, they differ a lot regarding how well they do that and what they can also do, in addition to the main functionality.
Of course this is just an analogy. We can study functional differences - while both Vostok and Crew Dragon can deliver a human to orbit and back, they differ a lot regarding how well they do that and what they can also do, in addition to the main functionality.