Intel Atom x7405C 's Advantages
Released 11 years and 11 months late
Higher specification of memory (4800 vs 1600)
Newer PCIe version (3 vs 2)
More modern manufacturing process (10nm vs 32nm)
Lower TDP (12W vs 115W)
Opteron 6278 's Advantages
Higher base frequency (2.4GHz vs 1.7GHz)
Larger L3 cache size (8MB vs 6MB)