Xeon X3440 's Advantages
Lower TDP (95W vs 240W)
Intel Xeon Platinum 8358P 's Advantages
Released 11 years and 7 months late
Higher specification of memory (3200 vs 1333)
Newer PCIe version (4 vs 2)
Higher base frequency (2.6GHz vs 2.533GHz)
Larger L3 cache size (48MB vs 8MB)
More modern manufacturing process (10nm vs 45nm)