Intel Xeon E5640 's Advantages
Higher base frequency (2.666GHz vs 2GHz)
Lower TDP (80W vs 100W)
Xeon D 2775TE 's Advantages
Released 11 years and 11 months late
Higher specification of memory (2933 vs 3)
Newer PCIe version (4 vs 2)
Larger L3 cache size (25MB vs 12MB)
More modern manufacturing process (10nm vs 32nm)