Intel Xeon E3 1245 v2 's Advantages
Higher base frequency (3.4GHz vs 3GHz)
Lower TDP (77W vs 130W)
Intel Xeon E5 1680 v2 's Advantages
Released 1 years and 4 months late
Higher specification of memory (DDR3-1866 vs DDR3)
Larger L3 cache size (25MB vs 8MB)