Intel Xeon E3 1280 's Advantages
Higher base frequency (3.5GHz vs 3.4GHz)
Intel Xeon E 2334 's Advantages
Released 10 years and 5 months late
Higher specification of memory (3200 vs 3)
Newer PCIe version (4 vs 3)
More modern manufacturing process (14nm vs 32nm)
Lower TDP (65W vs 95W)