lolMiner miner with an emphasis on AMD graphics cards (based on OpenCL) for mining coins on the Equihash family of algorithms.
Please note that the program will work on most Nvidia cards, but speed and stability may vary.
lolMiner supports Equihash and Cuckatoo algorithms. The program is designed for AMD video cards. Most Nvidia cards are also supported, but their stability and speed on lolMiner is questionable. The developers themselves warn about this on the project page in BitcoinTalk.
As usual, developers charge a fee. That's 1%, which means your hardware will run for developers for just over 14 minutes every day.