Intel Xeon D 1518 's Advantages
Released 3 years late
More modern manufacturing process (14nm vs 32nm)
Lower TDP (35W vs 115W)
Intel Xeon E5 2670 's Advantages
Higher specification of memory (DDR3 vs DDR3)
Higher base frequency (2.6GHz vs 2.2GHz)
Larger L3 cache size (20MB vs 1.5MB)