Opteron 6328 's Advantages
Higher base frequency (3.2GHz vs 2.9GHz)
Larger L3 cache size (8MB vs 6MB)
Intel Xeon E3 1284L v4 's Advantages
Released 2 years and 7 months late
Newer PCIe version (3 vs 2)
More modern manufacturing process (14nm vs 32nm)
Lower TDP (47W vs 115W)