Intel Xeon E3 1240 's Advantages
Lower TDP (80W vs 95W)
Xeon E 2486 's Advantages
Released 12 years and 8 months late
Higher specification of memory (DDR5-4800 vs DDR3)
Newer PCIe version (5 vs 3)
Higher base frequency (3.5GHz vs 3.3GHz)
Larger L3 cache size (18MB vs 8MB)
More modern manufacturing process (10nm vs 32nm)