The GTX 970 wins by far
NVIDIA GeForce GTX 970
Description:
Videocard First Benchmarked: 2014-09-19
Average G3D Mark 8713 Samples: 918
Overall Rank: 3
Last Price Change: $327.85 USD (2014-09-21)
http://www.videocardbenchmark.net/gpu.php?gpu=GeForce+GTX+970&id=2954
Radeon R9 290
Description:
Videocard First Benchmarked: 2013-11-09
Average G3D Mark 6514 Samples: 1268
Overall Rank: 11
Last Price Change: $251.99 USD (2014-01-02)
http://www.videocardbenchmark.net/gpu.php?gpu=Radeon+R9+290&id=2719
PassMark - G3D Mark
High End Videocards - Updated 21st of November 2014
http://www.videocardbenchmark.net/high_end_gpus.html