Intel Xeon E3 1275 v3 's Advantages
Higher base frequency (3.5GHz vs 2.2GHz)
Lower TDP (84W vs 135W)
Xeon D 2899NT 's Advantages
Released 10 years and 6 months late
Higher specification of memory (3200 vs 4)
Newer PCIe version (4 vs 3)
Larger L3 cache size (30MB vs 8MB)
More modern manufacturing process (10nm vs 22nm)