Is there any performance difference between the Identify and Query tasks?

[weiliang]

I try to use a polygon geometry to query or identify out the intersected features (return both geometry and attributes) from a map service's layers. Is there any performance difference between these two tasks (i.e., identify and query) to fulfill my task?

Thanks for your input.

Wei

[JenniferNery]

This might help: http://proceedings.esri.com/library/userconf/devsummit09/papers/building_your_first_rich_internet_ap...
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