Xeon E5540 's Advantages
Larger L3 cache size (8MB vs 6MB)
Intel Xeon E3 1285L v4 's Advantages
Released 6 years and 3 months late
Higher specification of memory (1866 vs 1066)
Newer PCIe version (3 vs 2)
Higher base frequency (3.4GHz vs 2.533GHz)
More modern manufacturing process (14nm vs 45nm)
Lower TDP (65W vs 80W)