HP Z1 Z1 G1i Black 2025

The HP Z1 G1i is a workstation tower built around a blazing 24-core Intel CPU and 64GB of RAM, making it a dream for developers and number crunchers. Its integrated graphics mean it flops for gaming or heavy creative work, but the port selection is among the best we've seen. If you live in an IDE, this thing is a bargain at street prices under $2,400.

If you've been eyeing a no-nonsense workstation tower that won't break the bank on a fancy GPU you might not even use, the HP Z1 G1i deserves a spot on your shortlist. We're looking at a machine built around Intel's latest Core Ultra 9 285, a 24-core chip that absolutely rips through code compiles, data crunching, and virtual machines. Add in 64GB of 5600 MHz DDR5 RAM out of the box and a well-rounded port setup, and you've got a serious desktop for developers, engineers, and IT pros who live in terminal windows and IDEs all day.

Pricing gets a little wild depending on where you shop — we've seen it listed anywhere from around $2,350 to a head-scratching $1.4 million, so definitely hunt for a sensible deal. At the lower end of that spread, you're getting a ton of CPU muscle and memory for the money, which makes it a compelling pick for businesses that want to standardize on a reliable workhorse. Just know that the integrated Intel graphics mean you're not playing modern games or zipping through GPU-accelerated renders without adding a dedicated card.

HP ships the Z1 G1i with Windows 11 Pro, a wired keyboard and mouse in the box, and that classic tower build that feels sturdy but tips the scales at over 12 pounds. It's not flashy, but it's the kind of machine you forget is under your desk until you realize you haven't seen a slowdown all week.

In our database, the Core Ultra 9 285 lands in the 93rd percentile for workstation CPUs, which translates to real-world performance that's a genuine step up from most previous-gen workhorses. Apps launch instantly, parallelized workloads like software builds or Docker containers fly, and the sheer number of cores makes light work of heavily threaded simulations. The 64GB of RAM is also a standout — sitting at the 97th percentile, it's enough to keep dozens of Chrome tabs, multiple IDEs, and a couple of locally hosted servers all humming without a hint of swap file lag.

Where things fall flat is the integrated graphics. This Intel GPU sits at the 46th percentile among all machines we track, which means it's okay for driving a couple of 4K monitors in a productivity setup but chokes on anything beyond casual image editing. Our scoring reflects that split personality: developer and workstation scores top 88 and 87 out of 100, while gaming plummets to an 18.3. If you're planning to add a dedicated card down the line, the 500W power supply will handle something modest, but you won't be dropping in an RTX 4090 without an upgrade.

The price tag on the HP Z1 G1i is kind of all over the map. We spotted listings ranging from a reasonable $2,351 at one third-party seller all the way up to a bogus $1.4 million at another, so you'll need to shop carefully. At the lower end, you're getting a processor and memory combo that would cost a small fortune to build yourself, and that makes it a smart buy if pure compute is all you care about. Compared to something like the Dell XPS EBT2250, which often comes specced with less RAM at a similar price, the Z1 G1i is more machine for developers who don't mind skipping a discrete GPU. Just budget for a dedicated card if you ever plan to branch out beyond spreadsheets and code.

Stacked against machines like the Lenovo Legion Tower 5i Gen 10 or the ASUS ROG GM700TZ, the HP Z1 G1i wins on CPU and RAM but loses hard on graphics. Those two competitors usually ship with RTX 3060-class GPUs or better, which means they'll happily game at 1440p or accelerate Blender renders right out of the box. The Corsair ONE i600 takes things even further, cramming a desktop RTX 3080 into a compact chassis, albeit at a much higher starting price.

What the HP offers instead is a dead-serious developer workstation. If your day revolves around compiling code, running test suites, or managing a local Kubernetes cluster, the Z1 G1i will feel snappier than those gaming-focused alternatives. But for anyone who splits their time between work and play, the Legion Tower 5i is probably the smarter balance. The HP is a specialist, not a generalist, and it leans into that role unapologetically.

If you're a gamer, a 3D artist, or anyone who relies on GPU horsepower for work, skip the Z1 G1i. The integrated graphics mean you'll need to budget for a dedicated card immediately, and the 500W PSU limits your upgrade options. You'd be much happier with a pre-built like the Lenovo Legion Tower 5i or a custom PC that gives you a proper GPU from day one. This machine is built for CPU-bound professionals, and it doesn't pretend to be anything else.

The HP Z1 G1i makes a lot of sense if you're a software developer, data analyst, or IT professional who values raw CPU throughput and buckets of RAM above all else. It's exactly the kind of desktop you'd roll out to an engineering team that never needs more graphics power than a desktop app or a YouTube tutorial. The price is right when you find a vendor listing it near $2,300, and the port selection means you won't be hunting for dongles on day one.

But if you have even a passing interest in PC gaming, GPU-accelerated content creation, or 3D modeling, this isn't your machine. The integrated graphics kneecap the experience, and you'd be better served by a pre-built with a dedicated card — or building your own rig. For the right crowd, though, the Z1 G1i is a quiet, dependable powerhouse that just gets to work.