Intel Xeon E3 1284L v4 's Advantages
Released 2 years and 6 months late
Higher specification of memory (1866 vs 3)
More modern manufacturing process (14nm vs 32nm)
Lower TDP (47W vs 95W)
Opteron 4340 's Advantages
Higher base frequency (3.5GHz vs 2.9GHz)
Larger L3 cache size (8MB vs 6MB)