Intel Xeon E5 2687W 's Advantages
Higher base frequency (3.1GHz vs 2.8GHz)
Larger L3 cache size (20MB vs 16MB)
Intel Xeon E 2378G 's Advantages
Released 9 years and 6 months late
Higher specification of memory (DDR4-3200 vs DDR3)
Newer PCIe version (4 vs 3)
More modern manufacturing process (14nm vs 32nm)
Lower TDP (80W vs 150W)