Intel Xeon E5 2403 's Advantages
Lower TDP (80W vs 165W)
Intel Xeon Platinum 8260 's Advantages
Released 6 years and 7 months late
Higher specification of memory (DDR4 vs DDR3)
Higher base frequency (2.4GHz vs 1.8GHz)
Larger L3 cache size (35.75MB vs 10MB)
More modern manufacturing process (14nm vs 32nm)