Intel Atom x7405C 's Advantages
Released 11 years and 5 months late
Higher specification of memory (4800 vs 1866)
Newer PCIe version (3 vs 2)
More modern manufacturing process (10nm vs 32nm)
Lower TDP (12W vs 115W)
Opteron 6308 's Advantages
Higher base frequency (3.5GHz vs 1.7GHz)
Larger L3 cache size (8MB vs 6MB)