Unreal and Unity GPU profiling tools aren't that great for graphics programmers. Only basic counters and timing brackets. You'd want to know the reason why the shader is slow. PC PIX is a good start. They are adding hardware GPU counter support soon. That will allow you to know something about the hardware bottlenecks. Hopefully it gets closer to console profiling experience.What are the advantages of these versus profiling tools in licensed engines? You get memory allocation profiling tools in Unity/Unreal for example.