Intel Xeon E5 2687W v2 's Advantages
Released 2 years and 5 months late
Larger L3 cache size (20MB vs 8MB)
More modern manufacturing process (22nm vs 32nm)
Intel Xeon E3 1280 's Advantages
Higher base frequency (3.5GHz vs 3.4GHz)
Lower TDP (95W vs 130W)