Xeon W 1350 's Advantages
Released 9 years and 2 months late
Higher specification of memory (DDR4-3200 vs DDR3)
Newer PCIe version (4 vs 3)
Higher base frequency (3.3GHz vs 2GHz)
More modern manufacturing process (14nm vs 32nm)
Lower TDP (80W vs 95W)
Intel Xeon E5 2650 's Advantages
Larger L3 cache size (20MB vs 12MB)