Intel Xeon E5606 's Advantages
Higher base frequency (2.133GHz vs 2.1GHz)
Lower TDP (80W vs 120W)
Intel Xeon w3 2423 's Advantages
Released 12 years late
Higher specification of memory (DDR5-4400 vs DDR3)
Newer PCIe version (5 vs 2)
Larger L3 cache size (15MB vs 8MB)
More modern manufacturing process (10nm vs 32nm)