Apologies in advance that my message will not be of much help, but I just wanted to say I am working on a benchmark site that will benchmark Vue, MojoWorld, and many other terrain rendering applications. It will not be ready for some time, but when it is, it will help answer questions like this. In the meantime an informal benchmark could be made and executed by the forum members here. I would be glad to advise on the creation of such a benchmark - there are certain specific criteria that are important to follow in order to make accurate comparisons. - Oshyan