Xeon E7 2803 's Advantages
Larger L3 cache size (18MB vs 16MB)
Xeon W 1390 's Advantages
Released 10 years and 1 months late
Higher specification of memory (3200 vs 1333)
Higher base frequency (2.8GHz vs 1.733GHz)
More modern manufacturing process (14nm vs 32nm)
Lower TDP (80W vs 105W)