Intel Xeon E3 1558L v5 's Advantages
Released 5 years and 3 months late
Newer PCIe version (3 vs 2)
Lower TDP (45W vs 140W)
Opteron 6180 SE 's Advantages
Higher specification of memory (DDR3-1333 vs DDR3)
Higher base frequency (2.5GHz vs 1.9GHz)
Larger L3 cache size (12MB vs 8MB)