Intel Xeon D 1537 's Advantages
Released 3 years and 6 months late
Higher specification of memory (4 vs 3)
More modern manufacturing process (14nm vs 32nm)
Lower TDP (35W vs 95W)
Intel Xeon E5 4603 's Advantages
Higher base frequency (2GHz vs 1.7GHz)
Larger L3 cache size (10MB vs 1.5MB)