Discover the power of the HP Z440 Tower Workstation. Compare processors: Intel Xeon E5-1620v3, E5-1650v4, E5-2650v4, E5-2683v4, and E5-2673v4. Upgrade from DDR4 16GB to 128GB RAM for unmatched performance in 3D rendering, CAD design, video editing, AI workloads, and heavy multitasking. A complete guide to choosing the right CPU & RAM for your Z440.