Original link: Intel surges 22% after $5 billion Nvidia investment, posts best day in nearly 38 years / CNBC.
5 B$ is some money but not enough to keep Intel afloat and NVidia's 4% ownership is not a big stake in Intel.
But the signal value of first US government and now NVidia investing in Intel is important - it gives confidence in Intel - and Intel desperately needs that.