Intel Xeon X5660 's Advantages
Higher base frequency (2.8GHz vs 2GHz)
Larger L3 cache size (12MB vs 8MB)
Intel Xeon E3 1240L v3 's Advantages
Released 4 years and 2 months late
Higher specification of memory (1600 vs 3)
Newer PCIe version (3 vs 2)
More modern manufacturing process (22nm vs 32nm)
Lower TDP (25W vs 95W)