Intel Xeon E5 2608L v3 's Advantages
Released 4 years and 6 months late
Higher specification of memory (1866 vs 3)
Newer PCIe version (3 vs 2)
Larger L3 cache size (15MB vs 12MB)
More modern manufacturing process (22nm vs 32nm)
Lower TDP (52W vs 95W)
Intel Xeon X5660 's Advantages
Higher base frequency (2.8GHz vs 2GHz)