Opteron 6366 HE 's Advantages
Lower TDP (85W vs 250W)
Intel Xeon W 3345 's Advantages
Released 8 years and 8 months late
Higher specification of memory (DDR4-3200 vs DDR3)
Newer PCIe version (4 vs 2)
Higher base frequency (3GHz vs 1.8GHz)
Larger L3 cache size (36MB vs 8MB)