Interesting comments on StackOverflow:
So, honestly - Is memcache really that old dinousaur that is a bad choice from a performance perspective when compared to this newcomer called Redis?
Here’s mine: feature-wise Redis has already overpasssed Memcached in almost all aspects. Redis 3.0 will bring Redis Cluster a distributed implementation of a subset of Redis standalone—check this for an detailed explanation of Redis Cluster. Production-wise though, Memcached will not be replaced so easy as so many services rely on it for quite some time.
Original title and link: Is Memcached a Dinosaur in Comparison to Redis? ( ©myNoSQL)