Intel Xeon E3 1505L v5 's Advantages
Released 1 years and 1 months late
More modern manufacturing process (14nm vs 22nm)
Lower TDP (25W vs 135W)
Intel Xeon E5 1681 v3 's Advantages
Higher specification of memory (2133 vs 2133)
Higher base frequency (2.9GHz vs 2GHz)
Larger L3 cache size (25MB vs 8MB)