When graphics processing unit (GPU) maker NVIDIA (NASDAQ: NVDA) reported second-quarter 2018 results, concerns about slowing growth stole the headlines once again. This time, the slowdown was caused by the sudden disappearance of the company's cryptocurrency mining business, a big contributing factor to 2017's successful campaign. Not to worry, though. NVIDIA is readying a new graphics technology that could help it establish a new sales outlet and keep that growth machine chugging along.