Intel Xeon E3 1226 v3 's Advantages
Higher specification of memory (DDR3-1600 vs DDR3)
Higher base frequency (3.3GHz vs 2.4GHz)
Lower TDP (84W vs 120W)
Intel Xeon E5 2676 v3 's Advantages
Released 1 years and 1 months late
Larger L3 cache size (30MB vs 8MB)