I'm waiting on my Mach II before I do any benchmarks, I'm still in two minds which motherboard to use but thats besides the point. This does appear to be a nice block, its more complicated to install than the maze 4 etc etc due to the nature of the card - not only does this cool the memory and obviously the gpu, it also cools the voltage regulator (the bit on the far right of the block) and it also has the pleasing blue LED around the centre. I will be doing a like-for-like comparison with the DD blocks when they appear - probably the best thing about this one though is the price, direct from Germany its about 100 Euros or so, which is cheaper than the competition at the moment.