Intel Xeon D 1557 's Advantages
Lower TDP (45W vs 95W)
Xeon E 2488 's Advantages
Released 7 years and 10 months late
Higher specification of memory (DDR5-4800 vs DDR3)
Newer PCIe version (5 vs 3)
Higher base frequency (3.2GHz vs 1.5GHz)
Larger L3 cache size (24MB vs 1.5MB)
More modern manufacturing process (10nm vs 14nm)