Well this should have some interestig replies...liquid cooling?
The $1,499 Radeon R9 295X2 is AMD's answer to the age-old question: What do you get when you take two of the fastest GPUs on the planet, slap them on the same printed circuit board (PCB), bolt on a liquid-cooled heatsink with dual fans? The strongest GPU AMD has ever sold in this category and our Editors' Choice award for high-end, multicore graphics cards.
..and from the other corner
EVGA GTX Titan Black
The EVGA GTX Titan Black high-end graphics card ($1,019) is currently the highest-performing single GPU you can buy, particularly for certain scientific and high-performance computing (HPC) applications, and the price tag puts it out of contention for most gamers. There are a handful of people who will benefit from Nvidia's powerhouse, but the majority of high-end PC gamers will want to stick with the Editors' Choice Nvidia GeForce GTX 780$719.00 at Amazon.
Intel I7 960 @ 3.87ghz *Intel DX58SO *AMD R9 290 4gb *Corsair TX650M *2x4gb Corsair XMS3 *WD Black 1TB *Windows 7 Home Premium 64bit ***Asus N71Jq laptop *Intel I7 720QM Processor *Mobility Radeon HD5730 1gb *8gb Ram *Windows 7 64bit ** Toshiba P75-A7200 * Intel I7-4700MQ * Windows 8.1 64bit
***** cetera fallunt, ludere mortuus ******