Nice improvement, but ...
Still not enough RAM!!
I know, I know, us compute guys are never satisfied. You give them more than 640 kB? They want more than 4 MB, you give them 16MB? They want 256MB! You up your game to 16 GB, and some knucklehead wants double that, and so on, and so forth.
Having frequently run out of memory on a 64 core 512GB compute server (with 384 GB Fusion-IO card), the R3 is still not for me. Still looking for a distributed-memory solution for our problem. Not trivial.