Intel Hyper Threading Performance On The Xeon 678X "Granite Rapids-WS" - Phoronix
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Intel Hyper Threading Performance On The Xeon 678X "Granite Rapids-WS"
Written by Michael Larabel in Processors on 20 August 2026 at 10:21 AM EDT. Page 1 of 5 . 3 Comments.
With the Intel Xeon 678X "Granite Rapids WS" processor that I have been recently testing within the HP Z4 G6i workstation, there are 48 cores plus with Hyper Threading is a total of 96 threads for this high-end workstation processor with a 300 Watt TDP. For those curious about the performance impact of HT/SMT on this Intel Xeon 600 series workstation processor, here are some comparison benchmarks.
For those curious about the performance impact of Hyper Threading on the Xeon 600 series workstation CPUs where HT/SMT is currently supported unlike the current generation Core Ultra desktop processors, this article provides a fresh look at the performance impact as well as power/thermal monitoring.
The Intel Xeon 678X within the HP Z4 G6i workstation was tested with the Xeon 678X 48-core processor at its defaults with Hyper Threading disabled and then repeating the same tests when it was disabled. The same Fedora Workstation 44 software stack was used throughout testing with this coming down to a simple SMT on/off comparison for reference purposes.
Thanks to HP for providing this temporary review sample for Linux testing at Phoronix and allowing these additional articles to uncover interesting benchmarks such as for those curious about the Intel HT benefits in 2026.
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