Intel Xeon D 1537 's Advantages
Released 4 years and 7 months late
More modern manufacturing process (14nm vs 32nm)
Lower TDP (35W vs 95W)
Intel Xeon E3 1245 's Advantages
Higher specification of memory (DDR3 vs DDR3)
Higher base frequency (3.3GHz vs 1.7GHz)
Larger L3 cache size (8MB vs 1.5MB)