Intel Xeon W 3323 's Advantages
Higher base frequency (3.5GHz vs 2.7GHz)
Lower TDP (220W vs 325W)
Xeon w7 3555 's Advantages
Released 3 years and 1 months late
Higher specification of memory (4800 vs 3200)
Newer PCIe version (5 vs 4)
Larger L3 cache size (75MB vs 18MB)