Intel Xeon D 1527 's Advantages
Released 10 months late
More modern manufacturing process (14nm vs 22nm)
Lower TDP (35W vs 120W)
Intel Xeon E5 2669 v3 's Advantages
Higher specification of memory (2133 vs 4)
Higher base frequency (2.3GHz vs 2.2GHz)
Larger L3 cache size (30MB vs 1.5MB)