> There are some use cases for which MongoDB will be 5x faster than any other system. This is a really bold claim that I very much doubt is true. For one, ther

> There are some use cases for which MongoDB will be 5x faster than any other system. This is a really bold claim that I very much doubt is true. For one, there are numerous other document stores that target the same sort of use cases as MongoDB. Second, there are benchmarks floating around that PostgreSQL used as a key value store is faster than MongoDB as is. I wouldn't be surprised if you saw similar things with other SQL databases.