Xeon E7 8830 's Advantages
Lower TDP (105W vs 135W)
Intel Xeon E5 4655 v3 's Advantages
Released 4 years and 2 months late
Higher specification of memory (2133 vs 1333)
Higher base frequency (2.9GHz vs 2.133GHz)
Larger L3 cache size (30MB vs 24MB)
More modern manufacturing process (22nm vs 32nm)