Both of these blue chip cryptocurrencies have plenty of upside potential.

Bitcoin ( BTC -7.80% ) and Ethereum ( ETH -12.44% ) , the world's two most valuable cryptocurrencies, both turned their early investors into millionaires and even billionaires. A $1,000 investment in Bitcoin's first publicly recorded trade in 2010 would be worth about $40 billion today.

That same investment in Ethereum's first trade in 2015 would be worth nearly $6 million. But could either of these blue chip cryptocurrencies churn a fresh $1,000 investment into more than $1 million within the next two decades?

The differences between Bitcoin and Ethereum

Bitcoin is mined with an energy-intensive proof-of-work (PoW) mechanism that requires miners to validate transactions by solving complex crypto

See Full Page