Is there a recommendation for a graphic card when using Cesium heavily?
Would an i7 on board GT would be enough to run very dynamic cesium apps with a lot of data?
Cesium has fairly modest minimum requirements, but if you want a recommendation, any nvidia GeForce card will perform best with Cesium, this is the consumer level card meant for video games, not the Quadro professional cards (which are actually meant more for CAD and will perform worse than their much cheaper counterparts).
I’m not sure what you mean by “very dynamic” or “lots of data”, but right now Cesium is CPU and memory limited when it comes to lots of objects moving around the screen. With dynamic data, lots of stuff happens on the CPU and the limitations of JavaScript start to show. We hope to improve this in the future, but that’s how it is right now.
It’s hard to provide better recommendations than that. My advice would be to build your app first, and then figure out what the hardware requirements are.