Intel Xeon E3 1280 v3 's Advantages
Released 3 years and 3 months late
Higher specification of memory (4 vs 3)
Newer PCIe version (3 vs 2)
Higher base frequency (3.6GHz vs 1.866GHz)
More modern manufacturing process (22nm vs 32nm)
Intel Xeon L5609 's Advantages
Larger L3 cache size (12MB vs 8MB)
Lower TDP (40W vs 82W)