Xeon X3440 's Advantages
Higher base frequency (2.533GHz vs 2.5GHz)
Lower TDP (95W vs 335W)
Xeon w7 3565X 's Advantages
Released 14 years and 11 months late
Higher specification of memory (4800 vs 1333)
Newer PCIe version (5 vs 2)
Larger L3 cache size (82.5MB vs 8MB)
More modern manufacturing process (10nm vs 45nm)