Xeon E7 2870 's Advantages
Higher base frequency (2.4GHz vs 2.1GHz)
Lower TDP (130W vs 165W)
Intel Xeon Gold 6338T 's Advantages
Released 10 years late
Higher specification of memory (3200 vs 1333)
Larger L3 cache size (36MB vs 30MB)
More modern manufacturing process (10nm vs 32nm)