Phoronix Benchmarks 48-Core Xeon 678X on Windows 11 and Ubuntu 26.04 in HP Z4 G6i
Updated
Updated · Phoronix · Aug 12
Phoronix Benchmarks 48-Core Xeon 678X on Windows 11 and Ubuntu 26.04 in HP Z4 G6i
3 articles · Updated · Phoronix · Aug 12
Summary
HP’s Z4 G6i workstation was benchmarked with Intel’s 48-core, 96-thread Xeon 678X, comparing its factory Windows 11 Pro setup against a clean Ubuntu 26.04 LTS install.
The test used the same hardware throughout: 128GB of DDR5-6400 memory, a 2TB SK Hynix NVMe SSD and Nvidia’s RTX PRO 6000 Blackwell GPU.
Windows 11 was measured in HP’s out-of-box configuration with current updates, while Ubuntu 26.04 ran default software components on a Linux 7.0 kernel.
Phoronix said the comparison was driven mainly by first access to Granite Rapids WS hardware and by interest in fresh Windows-versus-Linux results on Nvidia’s latest workstation graphics.
The Xeon 678X comparison is part of broader coverage planned for the Z4 G6i, with a full workstation review and additional Linux-focused benchmarks still to come.