Nvidia didn't release as much information on the GTX 1070, but we know it will have 8GB GDDR5 (not GDDR5X) and offer 6.5 TFLOPs (vs. 9 TFLOPs for the GTX 1080). It will have a $379 MSRP and officially launch on June 10.

Source: http://www.anandtech.com/show/10304/nvidia-announces-the-gef...