Anandtech Reviews the GTX 980.
"At the very high end the GTX 980 will be unrivaled. It is roughly 10% faster than GTX 780 Ti and consumes almost 1/3rd less power for that performance. This is enough to keep the single-GPU performance crown solidly in NVIDIA’s hands, maintaining a 10-20% lead over AMD’s flagship Radeon R9 290X.
NVIDIA will be placing the MSRP on the GTX 980 at $549 and the GTX 970 at $329."