Intel Xeon W3670 's Advantages
Released 11 months late
Higher base frequency (3.2GHz vs 2.4GHz)
Larger L3 cache size (12MB vs 8MB)
More modern manufacturing process (32nm vs 45nm)
Xeon X3430 's Advantages
Higher specification of memory (1333 vs 3)
Lower TDP (95W vs 130W)