Xeon X3470 's Advantages
Higher base frequency (2.933GHz vs 2.7GHz)
Lower TDP (95W vs 270W)
Intel Xeon W 3365 's Advantages
Released 11 years and 10 months late
Higher specification of memory (3200 vs 1333)
Newer PCIe version (4 vs 2)
Larger L3 cache size (48MB vs 8MB)
More modern manufacturing process (10nm vs 45nm)