Intel Xeon E7 4809 v3 's Advantages
Larger L3 cache size (20MB vs 6MB)
Intel Xeon E3 1283L v4 's Advantages
Higher specification of memory (DDR3-1866 vs DDR3)
Higher base frequency (2.9GHz vs 2GHz)
More modern manufacturing process (14nm vs 22nm)
Lower TDP (47W vs 115W)