Intel Xeon E5 2420 v2 's Advantages
Released 2 years and 5 months late
More modern manufacturing process (22nm vs 32nm)
Lower TDP (80W vs 130W)
Intel Xeon E7 8860 's Advantages
Higher base frequency (2.276GHz vs 2.2GHz)
Larger L3 cache size (30MB vs 15MB)