Intel Xeon E5 2678 v3 's Advantages
Larger L3 cache size (30MB vs 24MB)
Lower TDP (120W vs 250W)
Intel Xeon W 3335 '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 2.5GHz)
More modern manufacturing process (10nm vs 22nm)