The past few weeks I have been testing out the new HP Z6 G5 A workstation desktop PC. It's a beast in being powered by the AMD Ryzen Threadripper PRO 9975WX, eight channels of DDR5-5600 memory, and paired with a NVIDIA RTX PRO 6000 Max-Q workstation graphics card. The full review on the HP Z6 G5 A workstation will be published on Phoronix in the next week or so but given the timing and that it shipped with WIndows 11 Pro, here is a look at how Windows 11 Pro is competing against the newly-released Ubuntu 26.04 LTS in creator/workstation workloads.