Intel Xeon E3 1225 's Advantages
Higher base frequency (3.1GHz vs 3GHz)
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)