Fresh rumors out of Asia indicate NVIDIA's GeForce GTX 1080 may arrive as early as May. The first Pascal-based cards will reportedly be based on the mainstream GP104 GPU and are believed to feature 8GB of GDDR5X memory instead of the faster, but more expensive, HBM2.
Furthermore, the leak specifies the display outputs as DisplayPort x2, HDMI x1, DVI x1 and the use of only 1 PCIe 8 pin power connector. This limits power to 225W but with the new architecture and use of 16nmFF+, this may still allow the card to dance with the 980Ti. The launch date is reported as May 27th, just before Computex. Big Pascal GP100 is set to launch before that date though so stay tuned!