Opteron 1385 's Advantages
Higher specification of memory (1333 vs 3)
Lower TDP (115W vs 130W)
Intel Xeon W3680 's Advantages
Released 9 months late
Higher base frequency (3.333GHz vs 2.7GHz)
Larger L3 cache size (12MB vs 6MB)
More modern manufacturing process (32nm vs 45nm)