I want to know if this video card would be good to play flight simulator X.

Its going to depend on which sim you want to run and at what resolution. The video in this case is limited to 228 meg. That is going to restrict what you can play on it.

Also its directX9. DirectX is up to 11 now.

Are you building a system ?

Forgot this.

Intel® Graphics Media Accelerator 900 Information (http://www.intel.com/products/chipsets/gma900/index.htm)