IgorsLAB published a review on the Thermalright TF4, TF7, TF8, TF9 and TFX
Thermalright TF4, TF7, TF8, TF9 and TFX Review
As I have been asked again and again about the Thermalright T9 and TFX (i.e. quasi TF10), today there is a Thermalright special with a total of five pastes, three of which I would only recommend to a limited extent. Even though all five pastes are good in terms of price/performance ratio