Intel Xeon E3 1515M v5 's Advantages
Released 3 years and 10 months late
Higher specification of memory (2133 vs 3)
More modern manufacturing process (14nm vs 32nm)
Lower TDP (45W vs 130W)
Intel Xeon E5 2667 's Advantages
Higher base frequency (2.9GHz vs 2.8GHz)
Larger L3 cache size (15MB vs 8MB)