Interesting article from Anandtech. Well worth a read and sums up the pros and cons fairly of all gpu's mentioned.
Full Article
http://anandtech.com/show/7981/best-video-cards-april-2014
The big product launch for April was of course AMD’s new flagship dual GPU card, the Radeon R9 295X2. Packing a pair of Hawaii GPUs, AMD went above and beyond the norm for their latest dual GPU card. By utilizing a closed loop liquid cooler – a novel enhancement to video card cooling – AMD was able to use their powerful (and power hungry) Hawaii GPUs without any compromises, shipping the card at a blistering 1019MHz with both GPUs fully enabled. From a performance perspective the R9 295X2 is for all intents and purposes equivalent to a set of R9 290X Ubers in CrossFire, but taking up less space and more importantly achieving that level of performance with greatly reduced noise levels. However R9 295X2 is also a hungry card, and will set back buyers $1500 and 500W in load power consumption, so it goes without saying that it’s decidedly in the luxury category and will only be affordable to a small number of buyers.
Meanwhile NVIDIA did not announce any new products in April. In fact they launched one less product than we expected. The company’s dual-GPU GeForce GTX Titan Z, which was previously announced in March at GTC 2014, was scheduled to launch this month. However it is as of this morning a no-show with no word from NVIDIA on a delay, so we can only assume is has been delayed in to May.
Full Article
http://anandtech.com/show/7981/best-video-cards-april-2014