Intel Xeon E5 2658 v3 's Advantages
Higher specification of memory (2133 vs 4)
Higher base frequency (2.2GHz vs 2GHz)
Larger L3 cache size (30MB vs 1.5MB)
Intel Xeon D 1540 's Advantages
Released 6 months late
More modern manufacturing process (14nm vs 22nm)
Lower TDP (45W vs 105W)