Intel Xeon E3 1575M v5 's Advantages
Released 5 years and 10 months late
Newer PCIe version (3 vs 2)
Higher base frequency (3GHz vs 2.533GHz)
More modern manufacturing process (14nm vs 32nm)
Lower TDP (45W vs 80W)
Intel Xeon E5630 's Advantages
Higher specification of memory (DDR3 vs DDR3)
Larger L3 cache size (12MB vs 8MB)