Intel Xeon E5 2666 v3 's Advantages
Larger L3 cache size (25MB vs 24MB)
Xeon E 2488 's Advantages
Released 9 years and 1 months late
Higher specification of memory (DDR5-4800 vs DDR4-2133)
Newer PCIe version (5 vs 3)
Higher base frequency (3.2GHz vs 2.9GHz)
More modern manufacturing process (10nm vs 22nm)
Lower TDP (95W vs 135W)