The SiSoftware Sandra memory bandwidth performance of the six new AMD processors is as to be expected. The Phenom II X6 1075T slots in just under the 1090T while the Phenom II X4 970 provides a small performance improvement over the 965.
The Athlon II X4 645 is a fraction faster than the older 640 and we see much the same when comparing the Athlon II X2 265 to the 260. The Athlon II X3 445 produced a bandwidth of 12.1GB/s making it only slightly slower than the Phenom II X3 720. Finally the Phenom II X2 560 also provided a slight performance gain over the 555 model.