Xeon E7 2803 's Advantages
Larger L3 cache size (18MB vs 12MB)
Intel Xeon E 2356G 's Advantages
Released 10 years and 5 months late
Higher specification of memory (3200 vs 1333)
Higher base frequency (3.2GHz vs 1.733GHz)
More modern manufacturing process (14nm vs 32nm)
Lower TDP (80W vs 105W)