Intel Xeon 678X AMX Delivers Big AI Gains on 4x32GB HP Z4 G6i
Updated
Updated · Phoronix · Aug 14
Intel Xeon 678X AMX Delivers Big AI Gains on 4x32GB HP Z4 G6i
3 articles · Updated · Phoronix · Aug 14
Summary
Benchmarks on Intel’s Xeon 678X workstation CPU found AMX can deliver very large speedups in AI-focused Linux workloads, including software adapted for AMX-BF16 such as Open Image Denoise.
Testing on an HP Z4 G6i showed those gains came without the major power or thermal penalties that earlier Xeon generations often saw with AVX-512-heavy workloads.
The results center on Granite Rapids WS, which brings Advanced Matrix Extensions from Xeon servers into high-end workstations alongside other platform upgrades such as DDR5-6400 memory support.
Phoronix ran the tests on Ubuntu 26.04 with Linux 7.0 using a Xeon 678X and 4 x 32GB DDR5-6400, offering an early hands-on look at Intel’s new workstation chip.