Xeon W 1390P's Advantages
Higher base frequency (3.5GHz vs 1.7GHz)
Larger L3 cache size (16MB vs 12MB)
Intel Core i5 1240P's Advantages
Released 9 months late
Integrated graphics card
Higher specification of memory (LPDDR5-5200 vs DDR4-3200)
Newer PCIe version (4.0 vs 4)
More modern manufacturing process (10nm vs 14nm)
Lower TDP (28W vs 125W)