I have been using this solution with a i7 2600k and hd6790 and the performance hit on default settings is around 4-6fps, wich is not much for me, since the usual performance over london is around 40-50fps.
Thank you very much for pointing me into this solution. CLOD has gotten prettier
BTW, before anyone ask, yes im using it online on ATAG server and i didnt had any problem so far.