The numbers say that it is better.
I have only seen it used in one review. They said that they got slightly better results.
One advantage is that it isn't electricaly conductive.
I have some synthetic grease with metallic copper in it that gives me great thermal results, but it is so conductive that one stray spot and you can cook the cpu or mobo.
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A couple of folding boxes;
DFI LP Nf4 U-D, A64X2, 2GB ram, is folding again
MSI P965 Pt, C2D E6300, 2GB ram, old reliable
2.5 million points and counting
