Ravencoin is a cryptocurrency that specializes in the creation and peer-to-peer transfer of assets. Ravencoin’s proof of work (pow) algorithm is KAWPOW.
KAWPOW is designed to be ASIC resistant and can be mined using graphic cards (GPU).
KAWPOW is based on ProgPOW, ProgPoW is a proof-of-work algorithm designed to close the efficiency gap available to specialized ASICs. It utilizes almost all parts of commodity hardware (GPUs), and comes pre-tuned for the most common hardware utilized in the Ethereum network
(Source: ifdefelse github)