HP Unveils ZBook Ultra G3a Workstation with 192GB Unified Memory for On-Device AI

HP has unveiled the ZBook Ultra G3a 16, a mobile workstation built around AMD's Ryzen AI Max+ PRO 495 processor and up to 192GB of unified LPDDR5X memory, designed to run large language models directly on the machine without relying on cloud infrastructure.

As reported by TechRadar Pro (https://www.techradar.com/pro/hp-debuts-usd7-449-ryzen-ai-max-pro-495-laptop-zbook-ultra-g3a-has-192gb-ram-512gb-ssd-and-can-handle-up-to-300b-parameters), the top-tier configuration allows users to run models with up to 300 billion parameters on-device. The unified memory architecture permits allocating up to 160GB directly to the integrated Radeon 8065S graphics processor, exceeding the video memory available on conventional mobile discrete GPUs while leaving the remaining pool for system processes.

The Ryzen AI Max+ PRO 495 chip features 16 CPU cores and 32 threads with clock speeds reaching 5.2GHz, paired with an integrated neural processing unit delivering 55 TOPS for dedicated AI workloads. Storage expands up to 8TB via a single PCIe Gen5 x4 slot, alongside options for lower capacities.

To manage thermal output during sustained local inference, the workstation supports sustained power draw up to 100W—nearly double the 55W rating of its predecessor. Cooling is handled by a dual-fan setup with copper heat pipes and a shared heat spreader over the processor and memory. The laptop includes a replaceable 96Wh battery rated for up to 14 hours and a 180W power adapter that can reach a 50 percent charge in 30 minutes.

While official retail pricing has not been formally released, figures from HP's online Local AI Value Calculator indicate the top configuration—featuring the Ryzen AI Max+ PRO 495, 192GB of RAM, a 512GB SSD, and an FHD display—is priced at $7,449. A 128GB version with the same processor is listed at $5,999, while an entry configuration with a Ryzen AI Max PRO 490 and 64GB of memory costs $3,899.

HP is marketing the machine as a cost-effective alternative to cloud compute expenses. “Professionals need AI experiences that are powerful, reliable, and integrated into the way they work,” said Jim Nottingham, senior vice president at HP. The company's ROI modeling assumes a heavy workload profile of approximately 6.3 million tokens per day alongside continuous electricity costs. Independent testing has not yet verified sustained performance or thermal behavior under maximum model loads.

The chassis measures 17.9 millimeters thick with a starting weight of 4.2 pounds. Display choices include a 3840x2400 IPS panel, a 2.8K OLED touchscreen, a 2.5K panel, standard WUXGA, and DreamColor options. Connectivity features two Thunderbolt 4 ports, USB-C, USB-A, HDMI 2.1, Wi-Fi 7, Bluetooth 6.0, and optional 5G, with operating system support for Windows 11 Pro, Windows 11 Home, FreeDOS, and Ubuntu 26.04 LTS.