Intel Xeon E3 1585L v5 's Advantages
Released 6 years and 2 months late
Newer PCIe version (3 vs 2)
Higher base frequency (3GHz vs 1.866GHz)
More modern manufacturing process (14nm vs 32nm)
Intel Xeon L5609 's Advantages
Higher specification of memory (DDR3 vs DDR3)
Larger L3 cache size (12MB vs 8MB)
Lower TDP (40W vs 45W)