The fastest ccminer for my 970 is ccminer 1.7.2 by tpruvot .
Information: http://cryptomining-blog.com/tag/ccminer-1-7-2-tpruvot/
Download-Link: http://cryptomining-blog.com/wp-content/download/ccminer-1.7.2-tpruvot.zip
Source: https://github.com/tpruvot/ccminer