When it comes to producing heat, the nVidia 6800 GT's and Ultra's pump it out like no tomorrow. Taking the bull by the horns Danger Den have produced a block just for these cards and Titch has a look to see if they are up to the task :

"When you remove the block from the box the immediate reaction is WOW! This really is something special in the looks department. Machined from a single lump of copper is a block that is simply breath taking."

Read all of the review HERE.