Ok, so I got a chance to play some games with the GPU-220 installed. First, the OEM heat sink does great keeping the memory and VRM's cool, although I was not overclocking or overvolting either. As far as my GPU temps go, I never went above 55c on my first card and 44c on the second card. This loop also has the two GPU's, NB/SB, VRM's and the NF200 chips on my Classified 759 being cooled with just a triple rad. So overall not too bad. Still want a FC block depending on the price though.