Intel Xeon E3 1220 's Advantages
Lower TDP (80W vs 140W)
Intel Xeon E7 8893 v3 's Advantages
Released 4 years and 2 months late
Higher specification of memory (DDR3 vs DDR3)
Higher base frequency (3.2GHz vs 3.1GHz)
Larger L3 cache size (45MB vs 8MB)
More modern manufacturing process (22nm vs 32nm)