Figure 14 in the paper gives comparisons with MongoDB, Redis and Cassandra using YCSB. The git repo has the YCSB bindings for TAPIR, so you can run TAPIR against any of the other systems that also have YCSB bindings.
I don't think there's any claims that it did. The paper and the talk both made it clear that Cassandra outperformed it. I think MongoDB is the only one it beat. But I think the point is that it's able to perform well while being consistent, not that it's faster than "weakly consistent" storage systems like Cassandra.