I won't use the word "beat" rather i will use surpass by marketcap or popularity.
Now we can compare with marketcap and popularity. From the both perspective, Ethereum is far ahead but we have to think that Polkadot is still new and so far it has achieved huge popularity amongst the new projects for its four core functions. It's popularity will increase no doubt as well as marketcap. Now there is 7x difference between Ethereum and Polkadot but after Parachain auction launches, and constantly development of Polkadot ecosystem, its marketcap will also increase no doubt. So in the near future, Polkadot can surpass Ethereum by marketcap but it is too early to say.