STREAM Triad on Intel® Xeon® processor E5570 (code-named Nehalem) vs Intel Xeon processor E5472 Series (code-named Harpertown) in ICE 82000EX on 2 Sockets

At 2-socket node level the STREAM Triad measured memory bandwidth is 34.1 GB/s on Intel Xeon processor E5570 series (code-named Nehalem (NHM) ) 2.93GHz/1066MHz and resp. 36.6 GB on Intel Xeon processor E5570 series (code-named Nehalem (NHM) ) 2.93GHz/1333MHz, which is 3.5x higher than the memory bandwidth of a Intel Xeon processor E5472 series (code-named Harpertown) 2-socket node in ICE 8200EX.