Nordic Hardware found some new benchmark results of the Intel Nehalem Bloomfield B0 stepping processor:
The benchmarks posted focus on the multithreading performance in wPrime and Cinebench, and overall they show an about 50% increase in performance, comparing Intel Bloomfield operating at 2.93GHz to Intel Core 2 Extreme QX9650 clocked at 2.93GHz. It also seems that at least two memory channels are working with this system, unlike previous benchmarks where only one channel has been active.
wPrime 32M finishes in 9.218 seconds and 1024M in 288.937 seconds, while it scores 14184 points in Cinebench 10. A Yorkfield system needs about 13 seconds and 440 seconds to do the same, and would score about 10500 points in Cinebench. We've averaged out the numbers based on established data, but also because of the inconsistency in the different versions of the applications used to compare the two systems.