Intel Xeon W 2135 's Advantages
Released 7 years and 5 months late
Higher specification of memory (2666 vs 3)
Newer PCIe version (3 vs 2)
Higher base frequency (3.7GHz vs 3.466GHz)
More modern manufacturing process (14nm vs 32nm)
Intel Xeon X5677 's Advantages
Larger L3 cache size (12MB vs 8.25MB)
Lower TDP (130W vs 140W)