Xeon E 2176G 's Advantages
Higher base frequency (3.7GHz vs 3.2GHz)
Lower TDP (80W vs 95W)
Xeon E 2488 's Advantages
Released 5 years and 5 months late
Higher specification of memory (4800 vs 2666)
Newer PCIe version (5 vs 3)
Larger L3 cache size (24MB vs 12MB)
More modern manufacturing process (10nm vs 14nm)