Xeon E7 2870 's Advantages
Larger L3 cache size (30MB vs 8MB)
Intel Xeon E3 1545M v5 's Advantages
Released 4 years and 9 months late
Higher specification of memory (2133 vs 1333)
Higher base frequency (2.9GHz vs 2.4GHz)
More modern manufacturing process (14nm vs 32nm)
Lower TDP (45W vs 130W)