Intel Xeon E5507 's Advantages
Higher base frequency (2.266GHz vs 2GHz)
Intel Xeon E3 1240L v3 's Advantages
Released 4 years and 2 months late
Higher specification of memory (DDR3-1600 vs DDR3)
Newer PCIe version (3 vs 2)
Larger L3 cache size (8MB vs 4MB)
More modern manufacturing process (22nm vs 45nm)
Lower TDP (25W vs 80W)