Intel Xeon E5 2660 's Advantages
Larger L3 cache size (20MB vs 8MB)
Intel Xeon E3 1280 v3 's Advantages
Released 1 years and 3 months late
Higher specification of memory (4 vs 3)
Higher base frequency (3.6GHz vs 2.2GHz)
More modern manufacturing process (22nm vs 32nm)
Lower TDP (82W vs 95W)