Started to read lately that new GPUs are coming out. I'm in the process of trying to pick parts for a new build and was wondering if you guys think I should wait for the new cards to come out (basically they will lower the cost of the current cards and if anything I can buy them) or go ahead and buy the cards I was going to get regardless. I was looking into either a r9 290x(ASUS R9290X-DC2OC-4GD5 Radeon R9 290X 4GB or sapphire) or 780ti(ASUS DirectCU II GTX780TI-DC2OC-3GD5) so I'm worried since these cards have been out for a while and it would make sense for new GPUs to come out for x-mass. The only issue is will the "new" cards be faster then todays fast cards.
http://www.kitguru.net/components/graphic-cards/anton-shilov/first-rumoured-specs-of-geforce-gtx-880gm104-published/
http://www.pcgamer.com/2014/07/01/mostly-new-amd-gpus-rumoured-for-next-month-mostly/
http://www.game-debate.com/gpu/index.php?gid=1544&gid2=1408&compare=geforce-gtx-660-ti-sli-vs-geforce-gtx-880
http://www.kitguru.net/components/graphic-cards/anton-shilov/first-rumoured-specs-of-geforce-gtx-880gm104-published/
http://www.pcgamer.com/2014/07/01/mostly-new-amd-gpus-rumoured-for-next-month-mostly/
http://www.game-debate.com/gpu/index.php?gid=1544&gid2=1408&compare=geforce-gtx-660-ti-sli-vs-geforce-gtx-880