Results: Productivity
All three high-end builds utilize the same CPU architecture with an identical core count, so 3ds Max only reflects changes in clock rate. The newest machine wields a better overclock and a higher stock clock rate, so it dominates comparisons in both configurations.
Visual Studio also shows a small, but noticeable performance deficit in the machine with the lowest memory performance. The rest of this category's tests appear to scale well according to CPU frequency.