Xeon E 2176M 's Advantages
Released 7 years late
Higher specification of memory (2666 vs 1333)
Higher base frequency (2.7GHz vs 2.133GHz)
More modern manufacturing process (14nm vs 32nm)
Lower TDP (45W vs 105W)
Xeon E7 2830 's Advantages
Larger L3 cache size (24MB vs 12MB)