Xeon E7 2803 's Advantages
Higher base frequency (1.733GHz vs 1GHz)
Larger L3 cache size (18MB vs 6MB)
Intel Atom x7211RE 's Advantages
Released 13 years late
Higher specification of memory (4800 vs 1333)
More modern manufacturing process (10nm vs 32nm)
Lower TDP (6W vs 105W)