Xeon E 2126G 's Advantages
Higher base frequency (3.3GHz vs 2.8GHz)
Lower TDP (80W vs 105W)
Intel Xeon Silver 4309Y 's Advantages
Released 2 years and 9 months late
Higher specification of memory (DDR4-2667 vs DDR4-2666)
Newer PCIe version (4 vs 3)
More modern manufacturing process (10nm vs 14nm)