Opteron 6180 SE 's Advantages
Higher specification of memory (DDR3-1333 vs DDR3)
Higher base frequency (2.5GHz vs 2GHz)
Larger L3 cache size (12MB vs 1.5MB)
Intel Xeon D 1540 's Advantages
Released 4 years and 1 months late
Newer PCIe version (3 vs 2)
Lower TDP (45W vs 140W)