Opteron 8218 (F3) 's Advantages
Higher specification of memory (667 vs 3)
Lower TDP (95W vs 130W)
Intel Xeon W3690 's Advantages
Released 4 years and 6 months late
Newer PCIe version (2 vs 1)
Higher base frequency (3.466GHz vs 2.6GHz)
More modern manufacturing process (32nm vs 90nm)