Shares of chipmaker Nvidia (NASDAQ: NVDA) have soared more than 2,400% in just the past five years. Can this still be an exceptional long-term investment, one that could potentially turn a $25,000 investment into more than $1 million over the long haul?

Nvidia still carries the stock-boosting power, but its strength may be waning as some investors wonder how long it will last. According to a recent Bloomberg report, Nvidia founder Jensen Huang’s praise of Samsung Electronics memory chip capabilities last Wednesday prompted a 3% jump in the company’s shares.