Intel Xeon E5 2470 's Advantages
Higher base frequency (2.3GHz vs 1.9GHz)
Larger L3 cache size (20MB vs 15MB)
Intel Xeon E5 2609 v3 's Advantages
Released 2 years and 4 months late
Higher specification of memory (DDR4-1600 vs DDR3)
More modern manufacturing process (22nm vs 32nm)
Lower TDP (85W vs 95W)