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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.

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With Ubuntu 26.04 LTS having debuted last week and using it for many of the HP Z6 G5 A workstation benchmarks at Phoronix, I was curious to see how it was performing against HP's optimized Microsoft Windows 11 Pro installation for this workstation PC with all available system updates as of testing time. The HP Z6 G5 A workstation review unit was equipped with the 32-core AMD Ryzen Threadripper PRO 9975WX processor, 8 x 16GB DDR5-5600 memory modules, and the NVIDIA RTX PRO 6000 Blackwell Max-Q Workstation Edition graphics card.

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The out-of-the-box Windows 11 configuration was compared to a clean install of Ubuntu 26.04 LTS with its fresh Linux 7.0 kernel, GCC 15.2 compiler, GNOME 50 desktop, NVIDIA 595.58.03 driver in the Resolute archive, and various other up-to-date Linux software components.

Given the HP Z6 G5 A is a workstation product, these benchmarks for Windows vs. Linux comparison were primarily looking at the creator/workstation workloads native to both operating systems.

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[1] https://www.phoronix.com/image-viewer.php?id=ubuntu-2604-windows-11&image=hp_z6_1_lrg

[2] https://www.phoronix.com/image-viewer.php?id=ubuntu-2604-windows-11&image=hp_z6_g5a_lrg

[3] https://www.phoronix.com/image-viewer.php?id=ubuntu-2604-windows-11&image=hp_z6_2_lrg

[4] https://www.phoronix.com/image-viewer.php?id=ubuntu-2604-windows-11&image=hp_z6_ubuntu_lrg