Intel Xeon E7 4830 v3 's Advantages
Released 4 years and 2 months late
Higher specification of memory (1866 vs 3)
Larger L3 cache size (30MB vs 8MB)
More modern manufacturing process (22nm vs 32nm)
Intel Xeon E3 1280 's Advantages
Higher base frequency (3.5GHz vs 2.1GHz)
Lower TDP (95W vs 115W)