Opteron 6274 's Advantages
Released 1 years and 8 months late
Higher base frequency (2.2GHz vs 1.733GHz)
Larger L3 cache size (16MB vs 12MB)
More modern manufacturing process (32nm vs 45nm)
Xeon E6510 's Advantages
Higher specification of memory (1333 vs 3)
Lower TDP (105W vs 115W)