Intel Xeon E7 4850 v3 's Advantages
Released 4 years and 2 months late
Larger L3 cache size (35MB vs 8MB)
More modern manufacturing process (22nm vs 32nm)
Intel Xeon E3 1275 's Advantages
Higher specification of memory (DDR3 vs DDR3)
Higher base frequency (3.4GHz vs 2.2GHz)
Lower TDP (95W vs 115W)