My First Impression on HP Zbook Ultra G1a: Ryzen AI Max+ 395, Strix Halo 128GB
a day ago
- #Workstation Performance
- #FDTD Simulation
- #HP Zbook
- HP Zbook G1a (395, 128 GB) used for research involving big matrices and FDTD simulations.
- Strix Halo fits well for workloads requiring large memory capacity and bandwidth.
- Power draw peaks at ~80W, stabilizes at 70W, then reduces to 45W under continuous load.
- Performance benchmarks include CPU-Z, Cinebench R23, 7-Zip, Fire Strike, and Time Spy.
- FDTD simulation performance: AI Max+ 395 achieves 10.4 steps/sec, comparable to TR 5995wx.
- Local LLM (Phi4 reasoning) runs efficiently with 205 GB/s memory bandwidth.
- COMSOL Multiphysics benchmark results: ~36 minutes for CFD-only model.
- Windows performance quirks: Second CCD remains parked unless all 16 threads are utilized.
- Process Lasso required to manually activate the second CCD for optimal performance.
- Lack of BIOS option to disable SMT is disappointing for a workstation laptop.