Intel Xeon W 3345 's Advantages
Released 3 years and 7 months late
Higher specification of memory (3200 vs 2666)
Newer PCIe version (4 vs 3)
Larger L3 cache size (36MB vs 11MB)
More modern manufacturing process (10nm vs 14nm)
Intel Xeon W 2140B 's Advantages
Higher base frequency (3.2GHz vs 3GHz)
Lower TDP (120W vs 250W)