Xeon L7555 's Advantages
Higher base frequency (1.866GHz vs 1.7GHz)
Larger L3 cache size (18MB vs 8MB)
Opteron A1150 's Advantages
Released 5 years and 10 months late
Higher specification of memory (1866 vs 1333)
Newer PCIe version (3 vs 2)
More modern manufacturing process (28nm vs 45nm)
Lower TDP (32W vs 95W)