Intel Xeon E5 2430 's Advantages
Higher base frequency (2.2GHz vs 2.1GHz)
Lower TDP (95W vs 120W)
Intel Xeon w3 2423 's Advantages
Released 10 years and 9 months late
Higher specification of memory (DDR5-4400 vs DDR3)
More modern manufacturing process (10nm vs 32nm)