wPrime 1024M
Wprime is one of the few well-known Pi calculators that uses more than one thread (both SuperPi and Hexus PiFast only use one thread). As you can see, the new Haswell series performs better here as well, beating the i7-3770K on the same frequency.
Hexus PiFast
Hexus PiFast is a single-threaded Pi calculator, which makes Hyper-Threading useless, but Haswell even outperformed Ivy Bridge here.