Xeon E7 2830 's Advantages
Lower TDP (105W vs 210W)
Xeon w5 2545 's Advantages
Released 13 years and 4 months late
Higher specification of memory (4800 vs 1333)
Higher base frequency (3.5GHz vs 2.133GHz)
Larger L3 cache size (30MB vs 24MB)
More modern manufacturing process (10nm vs 32nm)