Intel (NASDAQ: INTC) sprung a big surprise when it said that it is going to work with archrival Advanced Micro Devices (NASDAQ: AMD) to manufacture a high-end notebook chip aimed at the enthusiast market. This unlikely partnership could pose trouble for NVIDIA (NASDAQ: NVDA), denting its chances in the notebook space as Intel and AMD are going to offer a sleek and powerful chip package to curry favor with laptop OEMs (original equipment manufacturers).So, should this venture give NVIDIA sleepless nights, or will it be able to overcome the Intel-AMD combine?Intel plans to combine its laptop-gaming focused Core H-series processors with a custom-made AMD GPU (graphics processing unit).