Intel Xeon E5 4603 's Advantages
Larger L3 cache size (10MB vs 8MB)
Intel Xeon E3 1515M v5 's Advantages
Released 3 years and 8 months late
Higher specification of memory (2133 vs 3)
Higher base frequency (2.8GHz vs 2GHz)
More modern manufacturing process (14nm vs 32nm)
Lower TDP (45W vs 95W)