Intel Xeon E5 4640 's Advantages
Larger L3 cache size (20MB vs 8MB)
Xeon E 2174G 's Advantages
Released 6 years and 2 months late
Higher specification of memory (2666 vs 3)
Higher base frequency (3.8GHz vs 2.4GHz)
More modern manufacturing process (14nm vs 32nm)
Lower TDP (71W vs 95W)