Intel Xeon E3 1515M v5 's Advantages
Released 7 months late
Higher base frequency (2.8GHz vs 2.1GHz)
More modern manufacturing process (14nm vs 22nm)
Lower TDP (45W vs 105W)
Intel Xeon E5 4650 v3 's Advantages
Higher specification of memory (2133 vs 2133)
Larger L3 cache size (30MB vs 8MB)