Intel Xeon E7 4820 v3 's Advantages
Higher specification of memory (1866 vs 4)
Larger L3 cache size (25MB vs 1.5MB)
Intel Xeon D 1548 's Advantages
Higher base frequency (2GHz vs 1.9GHz)
More modern manufacturing process (14nm vs 22nm)
Lower TDP (45W vs 115W)