Intel Xeon E 2334 's Advantages
Released 6 years and 6 months late
Higher specification of memory (DDR4-3200 vs DDR3)
Newer PCIe version (4 vs 3)
Higher base frequency (3.4GHz vs 2.2GHz)
Larger L3 cache size (8MB vs 1.5MB)
Intel Xeon D 1520 's Advantages
Lower TDP (45W vs 65W)