Opteron 6276 's Advantages
Lower TDP (115W vs 220W)
Intel Xeon W 3323 's Advantages
Released 9 years and 8 months late
Higher specification of memory (3200 vs 3)
Newer PCIe version (4 vs 2)
Higher base frequency (3.5GHz vs 2.3GHz)
Larger L3 cache size (18MB vs 8MB)
More modern manufacturing process (10nm vs 32nm)