Intel Xeon E3 1235 's Advantages
Higher base frequency (3.2GHz vs 3GHz)
Lower TDP (95W vs 130W)
Intel Xeon E5 1680 v2 's Advantages
Released 2 years and 5 months late
Higher specification of memory (1866 vs 3)
Larger L3 cache size (25MB vs 8MB)
More modern manufacturing process (22nm vs 32nm)