Xeon E7 4830 's Advantages
Lower TDP (105W vs 129W)
Xeon D 2799 's Advantages
Released 10 years and 10 months late
Higher specification of memory (3200 vs 1333)
Higher base frequency (2.4GHz vs 2.133GHz)
Larger L3 cache size (30MB vs 24MB)
More modern manufacturing process (10nm vs 32nm)