AMD Opteron X2 185 's Advantages
Lower TDP (110W vs 115W)
AMD Opteron 6348 's Advantages
Released 6 years and 8 months late
Higher specification of memory (DDR3-1866 vs DDR1-400)
Higher base frequency (2.8GHz vs 2.6GHz)
More modern manufacturing process (32nm vs 90nm)