Xeon W 1390 's Advantages
Released 2 years and 5 months late
Higher specification of memory (DDR4-3200 vs DDR4)
Higher base frequency (2.8GHz vs 2.7GHz)
Lower TDP (80W vs 205W)
Intel Xeon Platinum 8280 's Advantages
Larger L3 cache size (38.5MB vs 16MB)