Intel Xeon E3 1220 v5 's Advantages
Released 4 years and 6 months late
Higher specification of memory (2133 vs 3)
Larger L3 cache size (8MB vs 6MB)
More modern manufacturing process (14nm vs 32nm)
Lower TDP (80W vs 95W)
Intel Xeon E3 1225 's Advantages
Higher base frequency (3.1GHz vs 3GHz)