Here are the "real" chips (actual props sold by the movie studio, Miramax through Premiere Props w/COA):

Here are a recent set of "replica" chips that have recently shown up on . Almost identical. The main difference is the color & style of the denomination. I have a feeling that these are going to start showing up as actual prop chips. Be careful if you are looking to buy actual prop chips.

This is another set of replica chips that has been sold. Easy to spot the differences from the real chips.