Intel Xeon X5492 's Advantages
Higher base frequency (3.4GHz vs 2.2GHz)
Intel Xeon E5 1428L v2 's Advantages
Released 5 years and 4 months late
Higher specification of memory (1333 vs 3)
Newer PCIe version (3 vs 2)
More modern manufacturing process (22nm vs 45nm)
Lower TDP (60W vs 150W)