Opteron 6262 HE 's Advantages
Released 1 years and 8 months late
More modern manufacturing process (32nm vs 45nm)
Lower TDP (85W vs 130W)
Xeon X7542 's Advantages
Higher specification of memory (1333 vs 3)
Higher base frequency (2.666GHz vs 1.6GHz)
Larger L3 cache size (18MB vs 16MB)